Hey Hoosier, I tow a number of things, one of which is a gooseneck horse trailer.
If this somewhat applies to your question, I have a 2006 4x4 DRW, with Goodyear 265/70/19.5's on it. The height of the tires are a little over 34 inches.
The gooseneck hitch that I use is a Pullrite adapter that sits unusually high compared to normal gooseneck hitches.
Below is a pic.
I'm assuming that most gooseneck trailers have this type of adjustment on the coupler. It's a male/female sliding adjustment for height in leveling the trailer.
This isn't my trailer, but you can see the neck adjustment.
As with my set up, the neck is collapsed as low as it will go, and the trailer is level.
As in the case of your friend, my overall height may be similar, and with the proper adjustment, it may work just fine.
(BTW, no offense intended on moving this thread, just thought it would be best over here.)