Flashforge Creator Pro (& other Makerbot Clones) Rear Mounted Filament Guide

I have a rack of filament spools mounted above my printer and after recently restoring my Tunell Filament Monitor to working function )one of the tensioner arms broke awhile back), I needed something to guide the filament to the rear input ports that lead to the FM (filament monitor). Since I am not using the rear mounted spool holders I decided to use those mounting hole location/s to place my newly designed guide. I did hot glue it in place but I am thinking of designing and printing a spacer to place between the filament guide and the inside of the Creator Pro, possibly eliminating the need for hot-glue.

Printed at 40% infill and I will be adding some low friction tape soon to prevent wear on the guide over time.