alright mate, i was in your position a few months ago, i had an xr2i to kick about in, then got a job with a bit more cash, ive also wanted a williams for years, absolutely love them! i had 5k to spend, i just kept checking autotrader and found one i was keen on, it was a williams 2, it was down in preston and only had 56k on the clock, with refurbed alloys, brand new f1 tyres, decat pipe, magnex and k+n, exactly what i was looking for! he had it advertisedat 5k and i asked him if he would take 4500 cash, he said ok and i was down getting it a week later, i was absolutely mint, like brand new with full renault service history all reciepts etc he aslo gave me the reciept for the motor when he bought it, 6500 he paid for it a year and half ago, all in all it was a great deal, the car has been going like a dream ever since, feels so sturdy compared to the 2i, the handling is amazing and so is the speed, look about mate and try and get a good one, i would go for a williams 2 personally, i hear too many storys about willy 3s having dodgy sunroofs, and most of williams 1s have higher mileage, dont dive in, also do an hpi check to be sure, hope you get one soon mate, its the best 5k ive ever spent, i love it!
Tony