Well I finally got my notches. I drew them up on a cad program I have emailed it to my brother and he cut them out on a lazer. Turned out really good. They are 1/4 thick and I'll weld them to some 2x4 x 1/4 steel tubing I got and box in the top and bottom. Got some other ideas also to make it look pretty nice. So here they are...
Wasn't sure how good the pics where so I put both up.