I bought a 3 inch DA from Amazon just for the bike. I think I paid about $80 for it.

 

Technology is further along now. You used to have to create heat and friction mix and match different polishes and glazes to get the right combo to correct or cover up paint imperfections. But its not like that anymore. U can do it that way but its more work technology has moved forward. Get a small orbital buffer that turns or moves side to side slowly. Theres a company called Car Bright. Its the best innovation in current paint correction supplies. They have a compound stage u dont even need it. The middle polish and wax both go on with that buffer and you can't see anything in the color its perfect based on its condition. Later u can go to the compound of u feel u have to but its not even abrasive to the touch it feels like polish. Try it

 

Ill stick with what I have. There are lots of companies out there re-branding somebody else's stuff. Stick with the proven ones that have been around the block more then once.