Looks to need everything. On epay... https://m.ebay.com/itm/1970-Buick-G...e&pageci=866c007a-09a5-4b7c-a198-58f3f8abc455
Have to laugh the Cowl tags is hanging on by a thread on the right side this thing must've been underwater at one time.
My '71 GS convertible came out of Pittsburgh (what was I thinking?) & while it was a daily driver the lady kept it in a garage and I suspect she must've worked somewhere that it was covered. You can tell the car was well cared for & the bottom looks exactly as you'd expect from that area but once you go up, it's as nice as any rust free car. Around the trim tag, top frame, A-Pillar, etc. is all virtually perfect.