Kidding aside, maybe rent a car and stage it at the safer and more secure lot? It looks like a 2-day trip.
A good friend just ran the R Pass race this past fall... Hope to Cooper Landing, round trip, with a side trip down and up Devil's Pass just to round it out to 100 miles. No trail support either. He did the whole thing in about 23 hours IIRC. Mid-50s and came in third. Sounds impressive until you find out a woman in her 60s took second...