I guess you have coasters on your multipier ,you can remove these and either fit a Fuji Ziplock reel seat (can be taped on to experiment with) or you could fit the reel on by whipping it direct to the butt using a 1" wide strip of bike inner tube it stretches and will hold a fixed spool very securely and provide a comfy grip it will also allow you to take it off in seconds ,both of these cause no permanent alteration to the rod and will allow you to try your reel on a multilier rung rod If it all works ok look at a more permanent solution