Rodney. I did an EL Falcon BW into the Capri. Shortening it was the main outlay.
The good thing with the 2wd Hilux diffs is they are width correct and Ford 5 x 114.3 PCD on the flanges. Look around the LN86 range, mid/late 90's. LSD centres are available from various other Toyota's.
They are also not that heavy. Not that I've weighed them but it would have to be pretty close to the BW.
Mark