I've often thought of doing this, Nice work!
Is these anyway you can loose the hose ring?. Do you know how to fiber glass? with a little more work your idea could be fully awesome!
Originally I had planned on using a bunch of plastic welder to mold the asa onto the grip, but that would have made it impossible to re-disassemble in the event anything went wrong with the macroline or fitting.
Don't take yourself seriously. Nobody else does.