I had one of the chest rigs before the product was taken to Eagle. As SKD sells it, it is a good product for sure. I dont care for the weight out front, items stacked onto the front of the rifle mags. I use one mag pouch as open top, and prefer to have the rest under good, secure flaps.
For the OP, Ive never tried running my tractor with a chest rig on. Have to assume your use would be no different than "mounted" operations of the non-farm type ;-) I think in the long run, you will like the less is more approach. Wearing all the cool guy stuff gets pretty boring when there is nobody around to shoot at.......