Pauly- They said the bars are for an A-body, so that's good. The 3/8" spacer is for the front...
Also, about my A-arm dilemma...Bill Reilly is working with me to make a complete new set of A-arms designed for this specific application, that will be available for everyone-not just me. I just have to wait for a week or so for Bill to design them, and then he will send them to me to try out, and if they clear and everything works good, he'll start making them for everyone as a new product...