About 10 years ago Greg Scace and I designed and built some tilt trailers that worked really well. A rotating cradle picks the platform up off the blocks and and rotates it 135 degrees so it rests upside down at at a 45 degree angle. It's a simple wire rope mechanisim that does the lifting. I hooked mine up to a small 12V winch. I think Greg still has plans. To me it was always worth the hassle to build the trailer because the boat is so great to sail.
Kevin Cook