I used the solo right for many years with my H21 without any problems. Don't try to re-invent or make cheap short cuts, it will cost you more in the long run.

Currently I just use a winch to raise the mast on the ARC 21. I don't do it solo but if I could train the dog to wind the winch I would be ok. I attach the winch to the spinnaker halyard because it is above the main hound and gives me great leverage and leaves the forestay free to be attached.