nice looks like a real find!
looking forward to seeing more pics, when does it arrive?
would be worth stripping the brakes down and cleaning possibly replacing the pads, not a massive job and you'd be in at the calipers to bleed them when new fluid is installed anyway.
you'll probably find that something like gummi plege
https://www.pelicanparts.com/catalog/shopcart/CARE/POR_CARE_CAREXT_pg14.htm
......is your friend as I suspect some of the seals will need a bit of tlc.
I'm not familiar with the 964 sunroof seal but I wouldn't be surprised if it leaks a fair bit under the first wash and then is ok once you clean and treat the seal!!