Rear inner fender

I am going to stretch the rear wheel base, and am looking to see pics of how you guys have made completely new rear inner fenders, tubs, or thing along those lines. Have already done a search, and gotten a couple of ideas, but more details on rear inner fenders/wheel wells would be nice.

check out the rears on this build, simple and effective

http://www.pirate4x4.com/forum/showthread.php?t=507763

Thanks,

I love that XJ