This is pretty strong as is. I'm 250 lbs and I can jump up and down on these but I may still add a cross member between the two brackets like Ryca does for even more strength. If I do, I'll bolt it in between the brackets instead of welding just to make it easier to take apart if I ever need to.
I'll get the important measurements when I take it apart to paint. You could probably just use Ryca's bracket and fabricate the needed hardware to put pegs wherever you like. It would have been easier.
Up next is a proper kick stand. I'm modifying a stock stand (keeping the safety switch) and mounting it up like Ryca does. I'll post that in here and/or in my build thread:
http://suzukisavage.com/cgi-bin/YaBB.pl?num=1472222031