Looking for alternatives for the front hub speedo drive on a 77 shovelhead. My bike has had a dual disk front end installed and there is no room for the speedo drive. I have heard of people milling the trans and installing the needed gears for a trans driven speedo but that seems like a costly adventure. There is a kit to relocate the speedo drive to the rear wheel for softails but I'm not sure if I can make that work on this bike. Any suggestions?