A motorcycle rack will work great. Thats been my bike rack for years.
Using tie-down straps is not as convenient as a commercial bike rack, but there is also a sort of learning curve on that front. You figure out the easiest way to do it over time that for me at least was far easier than when I first started out.
I usually do one loop for each side of the handlebars, using cargo loops and very small come-alongs like what you get at Home Depot. Or Amazon. You can't get them too small since its a bike we are talking about. Then one more for the frame. The bar straps stabliize it fwd to backward and the frame strap clamps it down so it doesn't move period. I load the bike by myself so I have to do it one-handed, one hand holding the bike and one working the come-along. I affix one end of the come-along to the stand behind the bike and drape it so its easily reachable. Then roll the bike on, then grab that one strap, loop it over and ratchet it down a little to just get it to hold the bike steady. Doesn't take much for that.
This pic was my very first day tying this new bike (pre-e-conversion) to take it home. I hadn't figured out the best tie down method yet so used two straps on the frame.
Also, you will be well-served to do two things oftentimes:
1. Use a low-rise hitch riser to get the rack higher up off the ground. There's one in use in the pic below and it puts height up just enough so I never scrape going thru a driveway.
2. Buy a longer ramp. You can get 5- and 6-footers for about $70.
This one is six feet long and just like the one I bought. Colossally more convenient than the 3-footers they usually come with, and since you spent hardly anything on the rack, you are still way ahead of the game pricewise.