I did that with my Corbin seat. I have Bags Connection luggage that didn't fit the pillion seat very well. I got a luggage rack for a CT90 from a local salvage yard, found a piece of square tubing that fit the hole for the back rest, then welded it up. Works great. I'm traveling right now. I will be back the end of next week and can send pictures. My avatar picture shows the luggage on the bike.