TD5 rear side-seats into Puma 90?

[Tikka7mm08]

Hi - my MY08 Puma actually came with the old rear 90 seats rather than the new ones...but only has 2 fitted so another 2 in matching trim are now sitting in the barn. Can someone tell me the inner-distance between the mounts for 2 of the side facing seats? I can probably guess but need to allow for seat belts which I haven't got yet.

This is the reason I got my Puma 90 so I can seat 6 rather 4.

Thanks
Bob