Found this earlier: http://www.ebay.co.uk/itm/151297942429?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1423.l2649 R26 box with a hole in it for just under £200 (can send an offer if you'd like). Could be cheap if you know how to swap the diff in to a good box!
I could just imagine someone doing a clutch change, lifting the box up and... 'Fook me this is heavier than I thought' before taking a 6ft flying lesson to the deck lol :rolleyes: