Been towing boats with motorhomes for almost 20 years, so you won't find ME trying to talk you out of this!
Max weights on motorhomes can be ridiculous. And not all come with 2" receivers. We had a '92 Winnebago Brave 27' class A that had both issues- the original hitch was a 3000# rated "just-a-hitch", and I calculated my "allowed" trailer weight after loading the motorhome to be a whopping 75 pounds. I towed our 21' Sea Ray with it as-is, but when we got our Sun Runner 252, I had a new hitch installed- which was actually 2 hitches, one mounted in the normal position (attached to the add-on chassis frame extension), the other mounted forward of the first (attached to the original chassis). A 2" solid bar was welded from the back of the forward hitch to the front of the rear hitch. I could've pulled a freight train with that setup. It worked great for the Sun Runner--
This is our vacation setup these days--
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It's definitely different towing/launching/retrieving with a motorhome, but not a big deal. Because most motorhomes have a lot of real estate behind the axle, I've never known any to have high-center issues on ramps. And the extra length behind the axle actually helps when cornering a trailer, by pulling the hitch opposite the actual turn in a larger radius.
Final note, our Winne had inflatable suspension 'helper' air bags in addition to the leaf springs, which took care of any tongue weight issues. Many motorhomes come with them, if the one you get doesn't have them, I'd recommend it, they help even when not towing anything...
Have fun!