http://cgi.ebay.co.uk/OIL-PRESSURE-T...item35a4011fa7
This is what i'm using on the sport, not bad value at £13,
Great update, how much room is there between the seat belt mount and the cage? I cant see any other option than to use harneses if the mount wont fit between the cage and sill. Can you not fit the belt them put a load of force on the cage and push it into place?