Hello there,got a defender 90 300tdi 1996.We are now expecting are first child,and i was wondering what is the best way of fitting a child seat in the back,Exmoor trim are doing a folding/locking chair but want around £500 for it!Would defender 2007 rear seats retro fit into my 90,how dose that affect the insurance etc.Any advise would be appreicated,otherwise the wife will insist on me selling it and getting a car .