I found yet another great idea on the rv.net truck camper forum for an alignment guide. Spott’s idea ( Spott's post )– one of many. I just modified his idea using materials I had lying around the shop. The plastic “guides” are actually UHMW polyethylene (“A tough, wear resistant plastic that combines an incredibly low coefficient of friction with outstanding impact strength.”) which I purchased from Woodcraft. I also used UHMW blocks for the bumpers on the front of the camper (Longer Front Stop Blocks). Now all I have to do is get the camper “mostly” centered and the guide blocks do the rest. As Spott did, I glued the 2” foam to the bottom of our camper to further reduce the number of steps it requires to get loaded and go. Before I glued the foam I painted the edges with 2 coats of “Kilz” to hide the pink insulation. Now loading the camper has become much easier.