I did this Sunday with my brother in law. I bought the Mitivac 8500, but we had difficulties with it. It seems like it wasn't sealing well where the nozzle fit into the bleeder valve. When trying vacuum the fluid out, a small amount was coming out at the base of the bleeder valve on the caliper.
A different nozzle may have fit better, but would've required removing the front fender. We end up using his cheap harbor freight bleed-o-matic kit and doing it the manual way. That worked fine. The front lines weren't too bad, still a noticeable improvement, but the rear was long overdue, feels way better now. Definitely something I'll do every couple years at least.
We were going to do the radiator flush, but it does necessitate taking the gas tank off, the filler neck is under the tank. We partially removed the tank to have a look and discovered the filler neck was partially cracked and whoever did it (likely by twisting and pushing away from the bike) tried to repair it with some plastic filler. We decided to wait on it until I get a new OEM filler neck to replace it with.