Is you TDV8 an ex-G4 one (as in one of the two TDV8 made!) or a regular one?
If G4 you'll need a Mantec, otherwise you could get any of the one youmentionned, if they exist for TDV8.
I have the full underbody protections from Matec on mine, I can send you hi respics. Ditto for roof G4 event type rack and fitting the spare wheel.
PM me your email address