Not the direction I would go, but I do know a number of people who have run Harbor Freight winches with success. If you're only going to use a winch once in a rare while, it might be a cheap alternative.
HF 12,000lb winch normally $499.99, on sale for $399.99, with a coupon $299.99
Mine is also still going strong. As I think I've noted elsewhere here, go with better bolts and nuts for mounting. Mine snapped off well below normal torque values.
BTW, it seems to go on sale quite frequently at that price. Wish they'd start stocking synthetic line.
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2001 Ford E250 Sportsmobile with Salem-Kroger 4x4 conversion