Feel that pain somewhat as well, I have respect for you being able to tell your story on a forum. have some of those same problems, but not gonna get into that and dampen the mood lol.
I have a buddy who's tuning a camry V6 with a 6 speed actually, its got pretty good power, but he does have an ego or an unhumanly amount of confidence where it turns into an inflated ego lol ill just say in short he has street raced a jag and a hyundai genesis coupe cuz of it. Build looking good tho, started watching this and love the stuff your doing.
Do you know by chance what the guy on toyota nation is doing to get 200HP out of 5S'? what are you thinking for cams if anything yet?And same thing as you dude, everyone around here abuses their celi's like you wouldnt believe, theres one that has a chunk a size of a hand missing from his doors, its horrific

and I dont know of any 6GC's around here that are getting tuned and in good shape except for one thats practically identical to mine!
and rust is the biggest pain! Fixed it on my driver door with duraglass and still have a bunch of that rust to black primer stuff I need to paint over

and replacing the passenger door its so bad, its actually cracked because there was so much bondo under the paint! and still need to tackle the trinklid...
the guy before me did cheap fixes with this poor thing and im trying to treat it well but im new with this, very new. and its even in the shop right now which pains me sooo damn much that I cant fix it myself.......
And I soooo want that spree kit! is it brighter than that weird stock green?