Ryder maintains their equipment far better. I wouldn't send anyone I cared about on a trip with U-Haul stuff.
For trailer hitches check with any local camper shell dealer. They usually do that stuff, and so does any trailer/RV dealer.
If you can't get a good price that way, see what it'd cost for a Ryder truck and the deal to haul her vehicle behind it. I haven'[t done any of this in years, so I don't know what kind of prices they have on the stuff I'm talking about.