The block and wet sanding is really only if you want to get rid of the enevitable "orange peel" effect. And since you are using a single stage, I don't think I would do it anyway, because you will burn through the paint at some point on the body and then have to do it again. My opinion would be to get a good solid coating on it and call it good.
Jack
Jack
actually suggested to make the booth in the ONE CAR bay.



Got MOST of that done last night, but I had to do another round of bondo and I ran outta time for the curing. 