Pole building vs. block and stud garage

Down here "pole barn" means no main concrete floor.
Might have a couple small areas poured, but usually done after the main structure is erected.

I enclosed the ends of my Carolina Carport, to make it a "pole garage", and I am having some serious regrets.

I did save about $10K by not grading, filling and pouring, but I now sure wish I had at least graded and filled. As it is now, pouring a slab will put the slab right on the standing water line, and adding fill will make my ceilings too short by just a bit and cause my bottom plate to be below grade. I'm sure they won't last long in that state.

With that $10K, I did manage to get started on my project car and keep it from rusting any worse by keeping it in the "pole garage", although everything in there gets REALLY dirty from the dirt floor.