I do it the easy way plumbstraight. I just put a folding hitch on my quad and Ranger and viola' it's a "farm wagon" under Indiana law. This unusual statute was the result of lobbying from farmers here in Indiana. Back when the 3 wheeled ATVs came out it was common for us to make a simple hitch that attached to the front axle so we could pull them behind our tractor/equipment rig. The rigs we were using were massive, with, for instance huge wing disks tall enough that we would have to partially lower them to clear powerlines. It was handy to leave the equipment in the remote fields at the end of the work day and just ride the ATV home. Illegal of course, but stick to the County roads...and generally you were OK. Then enforcement took a turn and all of a sudden farmers were getting cited for this practice. So, the fix was an amendment to the old and obscure farm wagon statute that required no special equipment and the qualifier was only that the operator be 15 or older.
"SECTION 1. IC 9-13-2-60, AS AMENDED BY P.L.210-2005, SECTION 6, IS AMENDED TO READ AS FOLLOWS [EFFECTIVE JULY 1, 2009]: Sec. 60. (a) "Farm wagon" means either of the following:
(1) A wagon, other than an implement of agriculture, that is used primarily for transporting farm products and farm supplies in connection with a farming operation.
(2) A three (3), four (4), or six (6) wheeled motor vehicle with a folding hitch on the front of the motor vehicle, manufactured with seating for not more than four (4) individuals, that is used primarily:
(A) to transport an individual from one (1) farm field to another, whether or not the motor vehicle is operated on a highway in order to reach the other farm field;
( for the transportation of an individual upon farm premises; or
(C) for both purposes set forth in clauses (A) and (.
(b) The term includes a motor vehicle described in subsection (a)(2) that is used for the incidental transportation of farm supplies or farm implements at the same time it is used for the
transportation of an individual."
***** The "smiley faces" do not appear int he original text of the code. For some reason the computer wants to read ( capital Bee) in the cut and paste that way and I cannot convince it on edit to do otherwise.