You should just get rid of your shackles, un-reverse your frond leafs, and add panhard bars. Pretty hard to explain without pics, but he's running 39.5's with leaf springs that will easily articulate every bit as much as space ghost's at a fraction of a fraction of the cost. The unshackled ends of the springs ride on "pockets", and side-to-side movement is controlled by a panhard bar per axle (cost under $100 each at pretty much any farm or ranch store (heavy duty tractor links)). ONLY downside is you MUST jack each wheel separately to work on it,... the front and rear wheels will not come off the ground together until the frame is about 5-6 feet off the ground when flat lifting from the frame. Because his springs are only attached to the frame at the stock location, he doesn't have to worry about weakening his leafs by drilling them,... subsequently he's running a 100"+ wheelbase (the fronts of his tires are even with his front bumper, and the rears are as well).
Does this make sense??
I'll have to try and get some pics.
Chef: Ya, I was intrigued, and still remain. It basically works like the front coil spring susp. of br@nc@s and f@rd trucks, but with leaf springs. It's so simple, you'll kick yourself for not thinking it up first. Basically it un-complicates what 4-links make complicated.
He's pretty hard to catch (he works, and goes to a technical school), but I will (hopefully soon) get some pics, on, ond off ramp.