I'm wondering why also (high-speed tire spinning in mud with the wheels turned maybe?)
If I was to try this, I'd look at possibly using Longfield CVs (aftermarket Birfields for a Toyota). They come in both 27 and 30 spline versions.
The biggest issue will be incorporating the TTB slip-shaft on the right side though (IIRC Rough Country makes CV half-shafts for a Chevy that have slip-splines on them, maybe something from those could be used to make it happen?)
As said, enough time & money, anything's possible.