I bought the Harbor Freight setup, and made some minor modifications. I've done dozens of motorcycle tires for myself and friends. The tools have paid for themselves several times over.
Even though I built a balancer, I don't use it. The few times I checked, the wheel took the same weight in the same spot, so I just leave the weights on there. Balancing is overrated for expensive well-made tires on precision machined wheels. I would never have made such a statement back in the day when I was mounting retreads on stamped steel wheels