Man....I feel for you guys that are building after covid. Now granted I didn't go as big as you guys but in 2017 I went through DIY pole barns, ordered just a basic 24x32x10, split 12' slider, 36"steel access door, no windows or insulation and paid just shy of $7500. I got off easy on the concrete because a really good family friend owns his own concrete buisness and I was always wrenching on his stuff. I knew he'd never tell me how much the concrete was, but 3 days before the pour, he had a charge pump go out on one of his Bobcats so it kinda evened itself out, even though I'd never charge him what that job really would cost.
Fast forward to today.... it's just about double what I paid. I managed to get most of the walls framed and insulated pre covid, and every 8' wall section (between posts) ran about $200, PT 2x6 bottom plate, 5-6 2x4x10, and 2 rolls of faced R-19, 2.5 sheets 7/16 OSB when it was $9 a sheet.