I found out that good rear fenders/bedsides are hard to find used.
That would be my first suggestion is to try and find good, used bedsides. If not, find ones that can be repaired without alot of work. If you order them, expect to tinker with them to get them to fit right and expect some "shipping damage". I bought another used bed and made one good bed out of two bad beds.



Good luck - you are at the right place.