Ring an engineer. We can tell you "yep, all good" or "Nope, not a hope", but until you talk to an engineer or your local regulatory body, you will not have a definitive answer.
I've been told the moon is made of cheese, but that doesn't mean it is. I doubt very much that anything in this conversion is bolt in. Buy a tape measure, a note pad and a pen. Start drawing and measuring. Should be able to work it out in an hour or so.
A diff? T-series or hilux. Take your pick. Both will require mods to fit.