trailer rollers

[tsubaki]

In all honesty you'll spend the same or more trying to make stuff. The cheapest way is to have on hand 1'' galvanized pipe, a 1 1/4'' bender, 1 1/4 pvc for rollers, and then the u-bolts, etc, etc. If you have to buy this crap it'll cost you 12$ for the pipe, 35$ for the bender, 10$ for the pvc and then the bolt stuff and aggrivation.Sorry I know this ain't what you want to hear.
But look around at different approaches to what you want. The average price for about the same is 50-80$.