I use the Derek Weaver Blackjack, cut the 2 tall posts at the different height needed for the uneven frame tubes, works fine, Can lift either end high enough for tire or fork work. They come rounded for the frame tubes, I used a hole saw in a drill press to cut them down. A hacksaw to cut them off and cut a V would also work fine., I also ground a flat area on one side as it was up against the radiator hose.
BlackJack comes complete with everything you see here. A full range of adapters to raise the whole frame at once or just one end at a time. Free Shipping to the lower 48 states for a limited time!