future project, HT570

(my next crazy creation) slowly plannign things out, work the fine details out once i settle on a main design.
a bit down the road when i get time and $ i was wanting to find 2 mechanical ht 570's and tie them together for a straight 12, and put it into a full custom rig, 2-3 drive axles with lockers, and would be nice if i can get a live front axle/ transfer case setup to work. lockers on all axles, but not all on one switch. that is the basic drive-train explanation,


anyway, was just wondering what a good starting point would be to find a couple of those engines, not too much to pick from up here in alaska.