For the bush under the gear stick about £3.00... 15 mins to fit, you may need an extra hand to help you with this.
If i remember correctly about £40.00 odd quid for the 42dd bush kits in at the linkages, just make sure you order the correct bushes, as they can be easly mixed up... A photo always helps of your old bushes...!
Try
@vRSAlex at aks tuning for the bushes... or awesome GTI
A short shifter and side to side shifter will tighten things up also...