rear facing

Hi all, We'd like to fit a rear facing double seat/ bench with seat belts and flip-up seats behind a double front passenger seat in our T5 Has anyone done this ? And can you recommend suitable seats? Many Thanks

does anyone know if i would need to put seat belts on a rear facing seat in the back up against the bulkhead?, .. also would that be acceptable on normal van insurance?, unfortunately i cant insure it as a camper cheers :D