Its been 8 years since I did my van but I believe there are more products about these days so which one is best?
New van ? or re-doing it ?
If I had a new van, this time around I wouldn't use protectakote.
If I really felt I had a need to waterproof or protect the floor I would use a fiber glass kit over the ply lining ( if it had one being sure it was totally dry underneath first of course )