Good luck with this - nice to see some proper "back from the grave" aspirations.
You can realign the rear triangle yourself if you fancy - save yourself a couple of quid - I've done it before, it's quite easy and fun
For seized seatposts you may want to try something a bit more serious than GT85 - consider plusgas - search on here for more vicious methods - hacksaw blades, heat, caustic soda etc - there's a lot of fun to be had pulling out stubborn seatposts!!!
Everest is the lug company.
Good luck with this - nice to see some proper "back from the grave" aspirations.
You can realign the rear triangle yourself if you fancy - save yourself a couple of quid - I've done it before, it's quite easy and fun
For seized seatposts you may want to try something a bit more serious than GT85 - consider plusgas - search on here for more vicious methods - hacksaw blades, heat, caustic soda etc - there's a lot of fun to be had pulling out stubborn seatposts!!!