if your trailer is stoll good and all you need is axles then Champion is a good source for the pArts.
http://www.championtrailers.com/
If you want to fix even cheaper just to get buy for a couple of seasons, Northern tool's has some cheap axles and all the stuff you weill need.
http://www.northerntool.com/webapp/w...atchallpartial
I used them to keep my 1980 trailer going for 5 years till I got a new trailer last year.