@Angilion
How do you manage to generate a list of all the plans you are missing still please?
Old school gaming style - by hand
I looked at a list of items and modifications to those objects that was generated from datamining and made publically available. The list also stated whether a mod could be learned from scrapping, learned only from a plan, learned only from the atomic shop or couldn't be learned at all due to a bug or deliberate setting in the game. I think you posted the link to that list a while back.
I then went through every item at the appropriate workstation, sometimes using items I made myself at the workstation and sometimes using items I found while scavving. I opened a text file in another window and made the list manually, checking each item in the modify submenu at the workbench, noting which mods I could apply, cross-checking that list against the list of all the mods for that item in the datamining list and typing a new list in the text file, a list of the mods for that item that were in the datamined list but not in the modify submenu in the workstation list for the items I was looking at. I checked every item I could. In some cases, I could skip the comparison of lists because the modify submenu on the workstation showed that I already knew all of the mods for the object I was looking at. But I still had to make or find one of every weapon and every piece of armour and check it at the relevant workstation.
As for the pieces of armour I can't make, the process was similar but less time consuming - I went to an armour workstation and went through each category in the crafting submenu so I could compare the list of armour pieces I could make with a list of all armour pieces.
I skipped doing all that for power armour because I decided enough was enough after doing it for all weapons and all unpowered armour
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I missed some details on some (for a few items, I listed how many mods were available and how many I knew, but didn't list the names of the mods I didn't know or whether they could be learned from scrapping or only from a plan).
The formatting is neater in my plan, but it hasn't carried over to the post in this forum. I was just using tab in Notepad to align text. Presumably the forum software strips that out.
For your 71/76 armour plans you need all 6 x Raider plans for sure as well as the Dense armour.
No, I don't. I need 5 more armour plans that I don't already know. I could get another 6 just from the metal armour pieces I don't yet know. 3 more from robot pieces I don't know. Maybe 3 more from vault suits. I don't know if they count or if they can be learned. But even without them, that's 9 more I could get without any more raider plans or dense plans and 9 is more than 5.
Both will drop from the gifts but they are ultra rare expect to spend about 100K caps on gift paper to get the lot. I estimate I have spent about 120K caps now on gift paper in the last week alone to get most plans
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Just missing a small number now but these are the rarest of rare 0.003% drop rate plans so I am going to need to get big caps to buy them as no guarantee from the gift present drops of anything
I don't chase caps like that, so there's no way I'll be spending that many caps on anything. I'm getting about 10K caps per week, nowhere near the 120K you're getting. 1400 a day from selling scav, a bit from finding a few caps here and there on corpses and in containers, a bit from selling plans at 50 caps each, less a bit for fast travel costs.
I'll get what I get. I've already got a few dense armour plans and a few raider armour plans. Maybe I'll get some more. Maybe I won't. Maybe I'll get those other armour plans I don't have. Maybe I won't. I know I'll get some fun from the Christmas event and some fun and satisfaction from knowing that my shop selling every plan at 50 caps (regardless of how rare they are) as a service to other players will be useful to some players and from having found out that nobody has bulk bought from my shop to resale at vastly higher prices because they can. A few people have bought multiple copies of the same plan, but I think that was probably in error as the game defaults to "buy all" rather than "buy 1". A couple of days ago I happened to be in my camp when a player came in and expressed their appreciation of what I'm doing with my camp by using the thumbs up emote and dropping some lemonade as a gift for me. That's worth more to me than maximising profit in pursuit of plans. It's how I play games. Different strokes for different folks.