Thanks guys, but evne that "large" version on Amazon is basically the same cheap rig I've already got best I can tell. 4000 pounds w/ cheap 3/8 three strand rope. Seems quite a stretch, no pun intended. When you read the reviews, that product doesn't look so good. I might be spending $300 or $400 on wood shell blocks when I all is said and done. Or maybe I'll just get 100' of better 3/8 rope and hope the pulleys I have don't seize up or break if I put it to the test someday. Again, I appreciate everyone's input so far. We've got a hell of a good group here.