I am getting ready to buy a spray rig...getting rid of the buckets, my back won't take it anymore. I only do seal-coating as an addition to my existing business. I found this rig at Northern Tool, NorthStar 225 gal. trailer mount, cast iron banjo pump w/ 5.5 Honda, 75ft hose, wand and tips. I don't spray sand, I use a different method, this would fit my purpose. Anyone have any experience with this Rig?