Nice taco tie rod!
Just FYI, whatever you did to do that, will also bend the passenger side tie-rod end for the 1-ton setup. Unlike your stock stuff though, the beefier replacements won't leave you with funky steering. You'll just have to readjust the toe-in if you do bend it.
It's about the only weak link in the GM-based setup. All the rest of the stuff is uber-beefy stuff.
Don't see any reason you could not make it TRO either. I'm not sure if the 30 knuckles are any thinner or thicker at the steering arm than the 44's. If they're the same, then simply reaming from the top should get you a workable setup.
If the steering arm is thin enough though, you end up with sort of an hourglass shape, that does not grab the entire tapered stud of the rod end. However, it's still pretty strong stuff.
In a pinch, if it's too thin to support just tapering from the top, you could either fill the lower section with weld and then taper, or use one of the tapered shims, weld it in and then taper. Should get you enough material to do just about anything at that point.
From what I've seen around here though, most people going TRO do not have to add any fill and it works out just fine.
You've read the other threads on the subject, and know that you'll have to re-orient the trackbar to maintain it's parallel position with the draglink though, correct?
Probably need a stock pitman arm (depending on how much lift the truck has) and a trackbar riser is a better fit for TRO than a drop bracket.
Also, "The Cure" from Ruff-Stuff Specialties will help reduce rotational movement when steering. Probably a good idea with any GM 1-ton steering conversion.
Good luck. As we say around here, "every Bronco is different" so don't fret too much if you have to wait until it's together to make final tweaks and mods to make it just right. After all, you're changing things pretty good with this system. Longer draglink, different angles, higher location. That kind of stuff.
Lots of room for slight variations.
Paul