Hitch Extension Questions for Pulling a 7 x 14 Cargo Trailer

I think the shop meant that the shortest they sell is a 34. I'd put the camper on and remeasure while allowing for a ball mount. I'd also go with a 3" extension. There's no sense in reducing it's strength and using a reducer. I've found reducers make it harder to remove.

If you have a local shop that also does hitches and welding, go there. For the record, my extension overall is 24 inches. Too long also interferes with getting in/out and possibly will run into your steps.