The floor is just your basic off the shelf epoxy garage floor paint from Lowes. I sealed/primed concrete first. Four coats of white after that. Finally, I topped it off with a clear gloss epoxy with a traction additive. The floor turned out pretty nice and the price was under $500 for over 1000 SF DIY.
I few things that my previous workshops didn't have that this one needed in my opinion.
#1 A separate area for the air compressor. I used the under stair space for this. I have a dedicated 20A circuit just for the compressor (NON ARC fault). It is a large area that is sound insulated and will not overheat. This is my Favorite upgrade! I can talk to someone while the tank is filling
#2 Surface mounted air supply hoses in strategic areas. I'm gonna love this.
#3 More EAA type wall tables. I added 2 8x2 tables. This has given me designated areas for planing, storing, grinding, cutting, and assembly.
#4 My Computer. One of the best additions. I never thought it would be so handy having the computer right there.
My garage is just over 1000 SF and my wifes car gets it designated area every night now. My dimensions will allow me to assemble everything from tail to spinner (less wings of course). I am hoping this makes the on field assembly time much easier.
One thing to keep in mind with your new house Kevin, airplane building speed increases the closer your workshop is to the kitchen.