These babies do go on a 7" rim I've got 265/75 r16 MTZ's on my defender.
When I got mine I bought 6 tyres with a set of 6 black 7" sunraisier style rims and payed $1800 for the lot from Woonona tyres down near woolongong. It's a bit of a trek from Armidale but might be worth calling them.

