I've been looking for quite some time now for a workshop manual for the GG FSE450, both years '04 & '05. Every link I've found on TT seems to be offline.
I managed to find one online, but it is NOT in English!! Great pictures though.......unfortunately, not very helpful. I saved it, and hope to get it translated somehow?
I downloaded that 05 manual last fall, printed it out and had the local printshop spiral bind it. I find it very useful although my wiring does not seem to match the diagrams very well (at least some of it). It wasn't written in english but it is translated better than many other manuals I've used. Go for it.