I don't envy you! Moving is never fun (the reward is though)
The mortgage was extended without needing any other payslips etc which was quite nice as we were expecting to have to get all that stuff together again. We keep popping around to the site to see how things are progressing and the roof appears to be going on quite quickly so I expect once that bit is done the insides will go quickly. We get to visit the house once the roof is put on as well, it will probably start to feel real at that point. We have to pay for a few of our upgrades next week then all we have left to pay would be the solicitors. Back to running smoothly.
Moving in will be super easy for us. As we basically only own clothes! and a few other bits that are already all boxed up from when we moved into my grandmothers in March. My GM is about a 5 minute drive to the new house and it'll probably take about 2 trips to get everything in. Probably most time consuming thing will be taking a desk apart. We then have to order all of the furniture and, most importantly, all the gadgets and tech and deal with an onslaught of deliveries the first week
Once you get a date definitely get a sofa on order ASAP, they take ages to show up unless it's already made. Could be a while especially with covid.
White goods I take it are included? if not then they are usually pretty quick so less of a concern. Probably cheap Zanussi crap but I actually had no issues with the white goods from them.
Probably not too bad on general furniture deliveries otherwise, maybe a week or two.
Definitely give the place a good once over once you get the keys, if you log/report any damage they have to fix it, if you leave it longer than 2 weeks then they will blame you for it.
My experience with Linden was that they scratched my stainless steel hob and sink quite badly, presumably when cleaning it. I had new ones put in by them as I pointed it out early.
Whilst they are on site get as much done as you can in terms of fixes. Definitely pay close attention to stuff and log things before you get keys if possible so you don't move in to a train wreck.
In my case attention to detail was lacking all over the shop, and my floors and walls were simply uneven in places. I had them back to replace both my bathroom floors as they had put the floorboards down when they were wet, and when drying they didn't stay flat, then they just put the laminate over the top of that.