First of all, are you sure they are 205/70R16? That would make them smaller than standard SWB tyres!
SWB should have 6.00X16 or 205R16
LWB should have 7.50x16 or 235/85R16's
That is a 29" Rollig Diameter for a SWB and a 31" Rolling diameter for a LWB
I think your best bet would probably be John Craddocks
http://www.johncraddockltd.co.uk/
They usually do some pretty good 'wheel deal' packages. Ie four tyres on rims.
I think they have Colway remoulds on offer at the moment for about £200 a set on white eight spokes - but that is an Mud Terrain pattern.
Worth giving them a call though, becouse they are bound to have other tread paterns on offer for similar money. When I checked around, they could beat just about any of the local tyre places by a huge margin, and in most cases the wheel deal was actually cheaper than four individual tyres, before fitting & VAT.
As alternatives, I think that Colway also do an 'All Terrain' 50/50 tyre and I'm sure that they also do a 'town & country' road biased patern.
But shop around and see what you turn up, as tyre prices are always volatile.
Stock size for a LWB though is 7.50x16, cross ply. A 235/85R16 radial though is what they fit to the defenders, fits under the S3 arches even on offset after market rims, and becouse its a more common fitting, gives slightly more choice and hence better prices - at least in the mid range.
All the best.
