Lowering the bike (I assume both Harley and the aftermarket will eventually have lowering kits for the new front forks) on both ends may help, but as previously noted there is a fairly serious trade-off in ground clearance, cornering clearance, safety, and ride. I would suggest looking at a different seat first, plus modifying the passenger footboards to gain some clearance for your legs when trying to move the bike with your feet. I'm not sure about your current bike, but others on previous models have been able to move the boards back by switching the mounts from side to side.
If the main problem is backing the bike up, consider a reverse gear like the setup on the Trikes. There are some threads on the site that discuss various reverse options.
Jerry