Series 2a 2nd row bench - where to get one?

Hi guys

My Series 2a has the three separate seats on the 2nd row.

Does anyone make a bench seat with the grab handle? I can’t seem to find one anywhere. We’re these a rare option or something?

Also, as my series is a 67, there are no seat belts. I’d like to be able to fix in car seats in the 2nd row so my boys under 3 can ride in the series with me occasionally. Would the ISOFIX brackets on Amazon be an acceptable way of retrofitting ISOFIX. I know they would work but whether they meet the legal requirements is another matter. The legislation mentions no seatbelts = no children under 3. There’s no mention of ISOFIX which of course doesn’t need seatbelts.

cheers
Mike

I'd look at what Landrover did for the pre puma 110 defenders for seat belts. That's manufacturer approved fittings for a very similar vehicle. Check the way LR attached the fittings to the chassis.
As for Amazon parts? No clue about Toyotas.