Have you guys thought about a drill bit extension? I have these dill bits that use a 1/4-inch hex shaft for use in a quick release chuck. I bought a 12-inch extension at Harbor Freight for a few bucks for a couple of jobs and it works great. You coud grind a groove in the end of your existing Roto Start shaft to mimic what's on the end of the drill bits and then it will even lock into place on the extension. Otherwise some duct tape/electrical tape will do the trick.
This one is 6-inches and magnetic:
http://www.harborfreight.com/power-.../6-inch-magnetic-hex-bit-extension-30009.html
This is the 12-inch one I have with the slip/lock collar:
http://www.harborfreight.com/power-...nch-quick-change-extension-adapter-91056.html
If you don't have a Harbor Freight nearby try Northern Tool or even Sears...
HTH...
Mark