Not even close. Gwaii is the only one to ever have attempted such a feat to my knowledge. And that was with a Dana 50 beam and only because D60 stuff was too $$$ or hard to come by or something, at any rate he used what he had.
Making a D35 into a solid axle is a moderate engineering feat. Far, far beyond a few welds and mounting bolts.
i am 99% sure i saw someone on here with a d35 ttb turned solid axle... i remember reading gwaii's d50, on his ranger, but that's not what i'm thinking of... i wish i could remember who it was...
as far as what it would take, my statement of a couple welds, was a guess... but honestly, i can't see it taking that much... a piece of 2x2" square tubing welded on would probably do the trick more or less... but i can't say for sure without having one in front of me
edit:
after looking at pics of the ttb, one could make it into a solid axle quite easily, all you would have to do is cut the mounts for each beam, off of the frame of the donor vehicle, and make brackets, so that those mounts are welded to the adjacent beam, so the bushings and bolts and everything are still there... but instead of the TTB pivoting from the frame, they would pivot from eachother, and based on the fact that they won't pivot on eachother, it would become a solid axle... though there may be a slight issue with this, if the two were to pull apart, i can't quite see the physics in my head at this late hour of the night (430am) but if that were the case, a piece of dom between the mount of one, and the body of the other SHOULD solve that completely... but that shouldn't be an issue regardless...
the key would be making sure that the angle of the beams is set so that you don't have a camber issue
see attached pic, the way i have it described, if it is done properly, the ttb would function as a solid axle, but would be able to be taken apart into 2 pieces, for servicing, or replacing parts, if needed, just make sure the metal used to make those brackets is strong enough!