have the opportunity to buy 2 winches. The first is an older Warn Model 6000, does not work, missing parts, including the motor. Price is $50. The second appears to be more complete, though the seller is unsure if it works as taken from salvage. It is a Warn Model 5687, the price is $250. Here is the question, if I bought both, is there any way parts may be compatible between the 2? Thoughts appreciated on which one(s) to buy.