[MENTION=134924]RidingMatthew[/MENTION], Thank you.
I am not sure if I completely understand you, but I think you could zip-tie the fender at your suspension fork bridge. The rear "bridge" is mounted with bolts on the v-brake bosses. Unfortunately the rear part is specifically dimensioned to the small On-One Inbred frame and Curana's profile so I am not sure if it would be suitable for larger frames and different mudguards.