I think Mk2's are about 150kg more than Mk1's.
Your best bet is to go and get a G60 Golf, however your only option will be lhd. You can get 220 bhp with stage 4 charger and piper cams, maybe a little more if you look at going out to 1.9, flowing the head and spending ?800 on specialist exhaust and mainfold.
Guidline price for a G60 Golf is likely to be ?4k with some engine work carried out dependent on spec and condition.