Shane, in the pic, you seem to be a fair distance out of the hole. (gave me a bit of a chubby too seeing that)
My advice, more preload in the right hand side wouldn't go astray or try a shock adjustment, but you know the trick, try only one at a time.
In the 34 Ford I drove for Bob, in the end, we took the shocks out and fitted a solid steel bar in their place and then just worked on the preload.
Oh, by the way, we use to run the same wheelie bar style, but in the end, went for the single wheel crane jib hanging off the bum as well.
A duel wheel style pram handles do suit the nostalgias better however.
Hey, that would be the quickest you've gone too I think, so congrates.