Hmm, well i never thought that the On/Off valve would screw into my Co2 tanks, but looking at it now it seems like it might fit. Its a little late now, so ill try it and make sure tomorrow.
As far as connecting the other end to the regulator, i got the remote hose cheap because it didn't have the whole assembly that you have pictured. It only has one end of the usual quick disconnect that is at the end. I guess i could always go back to the paintball shop and pick up the other end of the disconnect. But honestly, i wouldn't feel too comfortable having a quick disconnect in my main CO2 line. Seems like asking for trouble. Although its good to know i have the option if worse comes to worst. Thanks Baron.
Imma go to a local welding supply shop tomorrow and see if i can still dig up a solid adapter for this thing. Seems like it has to be a coupler between a 1/4 Female NPT Left handed to a 1/8 Male NPT.