I have a international scout I am trying to restore and looking at rust repair and rust proofing. i am looking at using 16017ZP wax stuff in the rockers and other hidden area for the reason it will wick into the seams from what I see. will the EW underbody keep from rusting or do i need to do the RE and then underbody stuff? I was wondering on the floorboard i have a seam that is rusty and was wondering if I cleaned the rust that is there anthing that will wick into that? will RE? should i cut it out? what is the best appraoch there?