after reading the op a second time just now, that's what i was thinking! ha!
as for the o-ring pick, i got a set from sears for like $6.
I have a virtually brand new Super Stock that I purchased several years ago that just sat in the safe. It airs up fine with no leaks and cycles fast
Gun metal grey, has not been used at all, no valve, battery or guts for the frame. Looking for 450.
Also have a classic body vertical