i did the transit i use for my pressure cleaning and pestcontrol business with protektakote and aplied 3 coats onto the ply, once degreased.
No complaints at all, copes well with petrol spills and machines runing in and out. Only one tear from a pikaxe geting thrown down and this was easy to re-coat.
if you do it in the winter then worth buying a couple of sachets of rapid hardener direct from the protektakote website, otherwise the stuff takes forever to go tacky if the temp is low.