There has been covered a thousand times.
Look up the part number in the TM and start Googling. Theres a for sale/want to buy section on the forum here. Did you try that? Theres a lot of CUCV owners here, maybe someone has one.
What burned up on it? If it was me, I would deal with it, take it off and take it to a shop and have it repaired. Yeah its a Chinese starter, but maybe that would get you back on the road until you can find a GM one.