Kombi Seat Fitment - 3 single seats

[dobinallen]

Hey,

Finally got my ex RAC T6 to convert and then can sell my T5.1

I purchased 3 single Kombi seats from a 21 Plate T6 that was being converted (Middle has integrated Seat belt and end ones have separate Seat Belts for the C Pillar) , I have all the quick release and floor brackets apart from the reinforcement brackets that were left on the van.

Seen lots of posts on 2+1 and 3 Seat Kombi fitments.

Question: What reinforcement brackets do I need to fit 3 single Kombi Seats? and where can I get them from?

Thanks in advance guys