Mwahahaha.
Karcher K4 pressure washer. About £170 from Argos but shop around and you should find it cheaper.
Snow foam - there's far better people on here to advise on that.
Shampoo - Meguiars gold class.
Get yourself a Farecla G3 clay mitt.
Car towels - I quite like the purple monster (edgeless) although for some reason mine are blue...
Autoglym super resin polish is a good shout for a nice shine.
Meguiars quick detailer - can serve as lube for the mitt and also does what it says.
Wax - just got myself some poorboys Natty's paste. Great shine. Smells like bubblegum
I'd say use a clay bar not a mitt, I found it next to useless and left it alone after one panel.
I'd also say go with Bosch or nilfisk pressure washer as kerchers do kill their pumps often..
As far as sealants go my go to now is carpro hydro2 or bilt hamber double speed.
Snow foam, again bilt hamber is great for removing dirt but I stick with citrus pre wash lately and it does the same job.
I'd also recommend megs tyre gel and bilt hamber auto wheel cleaner as that is amazing, expensive but does the job really well.
Purple monster towel is a good shout, love mine.
Get some detailing brushes too as they're very useful to get dirt out from tight areas.