Heavy duty clutch required

hey
i need some sort of heavy duty clutch as my tires are big and grippy. my clutch has gone AGAIN on my trayback.
any ideas of some good and strong clutches but on the cheap?

these are the tyres (on the old bus)

I have done a few disco + rangie clutches, as for HD I'm not sure but I have found Valeo clutches to fail at about 60K in service on diesel vehicles, the best standard clutch IMO is the AP Driveline which I think is OEM and can be had for around £80 if you shop around, some of them do 100k plus even on a towing landy.