Hi, I'm starting a cafe build on a 1980 CB750F and working on my bill of materials to get everything ordered. I planned on making a 2-up seat and using/building a removable rear cowl when my wife isn't riding. There seem to be several available on e-bay, but given the frame is a little more angled on the DOHC vs. the SOHC and I don't want to make that major a modification to the frame to make it a straight line down the bottom of the seat, are there any suggestions, links, or ideas on how to build and implement a removable rear cowl on a DOHC 750F frame? Also, I'm open to different ideas on the seat design, too.

Thanks for your help!