Built one upper and lower front A-arm to test the design. Looks like it’ll work as-is with the shock mounted outboard. Installation ratio is about 0.65, which translates into a 300 lb/inch spring to get 130 cpm wheel rate. That’s not bad, and wheel rate rises slightly in compression.
With that out of the way, it brings up the issue of inboard suspension. What I prefer doesn’t mean much if everyone else like something different… so, I’v decided to go inboard. The reasoning is that since it’s more complicated, that’s what needs the attention. The simplier outboard solution uses the same A-arms and is a no-brainer to install.