Hi Mike, I think 'Heathcliffe' would have been your best handle.
Welcome. Wife & I live just off the A1 in South Yorks. If you're ever going to be passing send me a Private Message. You can have a look at our car......
Not for sale I would stress but I would think one of the best unmodded Series 3's around. Usually not washed, not vacuumed out, not steamed cleaned underbonnet, but all fluids up to level, all tyre pressures correct & so on. It's value I would guess at £4000 - £4500 tops, with supportable 56,000 mile paperwork (Albeit my records). It's getting ready for new suspension bushes true, but that's about it.
It's correct Reg number is a real curiosity - a genuine K plate, perhaps worth another £800 or so, which when we sell will stay with little ol' Gus. It's the silver one near the end of the headline banner. The car that everyone on here sees and says 'I must have a red racing pin stripe on my car'...... 
 
Hope that pricing info helps. Pity you wern't around for the £2200 steal. It was at Selby!
Cheers   Codge   (Ancient Dave)