Katrina,
If your wheels are gimpy, a gaited horse will smoothe out the ride enough that you may stll ride. A Paso Fino or a fox trotter. Trouble is if you're not looking for one they're cheap, but if you want one they can get as pricy as a good rope horse.
I have a decent twister, the horses he takes in get roooode. Given the distance, I wouldn't haul to Kansas unless your colts are real snuffy broncs.