I totally had the chance to copy the Rancho kit years ago. I can easily transfer all the bracketry to CAD and make as many as desired. But the knuckles were the wrench in the plan. You could conceivably carve them from a solid billet (CNC mill), and use a combination of welding....and get the same basic thing. That would be quite a project but, far cheaper than sourcing a foundry to do the casting. It simply doesn't make financial sense to mess with the IFS. Maybe it would if you could just replace the pumpkin with something stronger. But the topic always migrates far deeper, like a snow-ball rolling down a mountain. Before long you're making control arms, half-shafts, steering racks, knuckles, crossmembers, coil-over swaps, blah blah blah. Ultimately, all roads leaving the H3 IFS end up at the same destination...FULL TILT CUSTOM! Trust me. Cut it all off...or leave it stock. There is no middle ground.
Back to the O.P.:
I've had very good luck doing alignments at home in my garage. I use some string, a carpenter's square, a level, and an angle finder. I find the old-school NASCAR method of alignment to be more accurate than most shops. They got the equipment but, rarely the brains to use it. So you end up paying for an alignment, that is inferior to what you can achieve on your own with simple hand tools and a flat concrete slab. DIY for piece of mind.