I have not done it but wouldn't hesitate doing the job if need be. Only thing I would be concerned about is the correct placement of the vent. According to the FR brochure, your TT has a 5" Bowed Truss Roof Rafters System
. Installation of the vent would have to be somewhere in between two truss. I'm thinking the truss are 16" on center. A call to FR would confirm the truss spacing.
EZ-MOUNT 14X14 Vent should be an easy install.
Also see RV Parts Center
for Elixer Roof Vents and installation kit.