i ran in a cabrio shell rilled with bikes are general metal crap and it was 125 per ton, i get 140 becaus ei go thru a mate who is matey with then weighbridge guys

may be worth chuckign it on gumtree for £250 1st then it may go without hassle otherwise call your local matal guys (maybe breakers too but not much cash there) and whoever offers the best per ton drive it there
you will lose £1-3 per tyre!! if they are good take them home and ebay/gumtree them
get someone out of teh paper to do it and you will then be giving them a cut so best to do it yourself
and take the v5 too makes things easier