90 deg room with 18k ac and co2 sound good?

My room is in the making and I'm getting close maybe flowering on Monday!!!! How does 90deg sound? That's the lowest I can get it.... I have a 4 ton split ac but it goes to different rooms so 90 is it! Completely sealed room, gen 2 water cooled co2 gen, diy undercurrent 280 gal total hahaha