This is 16" wide by 16' long. I went with a vertical sled built on a 2x4 frame laid on the flat side. The frame ends are beveled in the photo of the underside. It will lift a bundle of shingles. It's not quick. An electric winch or a rope winch might be faster. Cost about $20 for the 2x4's, $20 for the winch/cable, and $5.00 each for two pulleys. I had the 3" inch channel steel laying around. Would have preferred something lighter, but that's what I had and I'm out of shielding gas to weld thinner metal anyway so I used flux core mig.
Will give it a better test run this weekend if the rain holds off.