bump stops for real axle

I have gotten lots of good info from this site. Now I need more help!
I am putting a 53 chevy truck on and s-10 frame. I have moved the wheels to be centered in the wheel wells, now the rear axle does not line up with the factory bump stop. Also, the rubber bumper is missing on one side.
Where can I get after market bump stops that can be attached to the frame?

 

All the minitruck sites sell them in a nice urethane button. Check suicidedoors.com

 

thanks, will check it out