The prep work for the clear was pretty easy. Just lightly sand the VCT with 80 grit...vacuum the dust and then wipe the floor with a light dish soap and water mixture to make sure no dirt/grease was left behind. Since the VCT was just laid down and not used yet, there were no real grease/oil/contamination issues to be overly concerned with. The VCT took a long time...at least for me...since it was my first time ever laying it and I was way too **** about seams/tile alignment/ tiling around garage door rails...etc. I did not track my time, but I would guess 20-30 hrs? usually two hrs at a time after the kids went to bed. For reference, the total area is 980 sq ft. Since I only has two hour windows to work, I just used my Porter Cable 6" orbital polisher with a sanding disc and my creeper to roll around on.
I really dig the 2x2 checker look, but going with a single color epoxy (Wolverine Liqutile) would be a lot less work.