LWB mid row full size seats

I'm after suggestions,

I've got my 110 with 5 seats (no rear benches) but I need to fit two kiddie seats in there (full size, not booster) so I need to fit some full size seats in the middle row. I know Exmoor trim do these, and to be fair they're not a rip off price, but does anyone know of any other manufacturer that can do them? or perhaps a place that would do a decent 2nd hand set?

Must have full back and full seat pads to support and secure the child seats.

Cheers

Theres been some on ebay recently

Thanks. I saw a few on there, but wondered if anyone else had any experience in doing this, or knew of any other manufacturer?