Cost of Replacing Exhaust Valves '94 st202 3SGE? (Not BEAMS) Options

[PurpleLime]

Hi all. This is my first post, been reading on this forum for a while and its a great community. I am thouroughly enjoying my import '94 st202 w/superstrut (already had fun stopping that (superstrut) from clunking and veering around the road!). I noticed a wobble at idle a few months ago after a good thrashing, and have narrowed it down to cylinder number 2 having 8 Bar of compression, compared to the 13-14 present on the other three cylinders. I suspect a burnt exhaust valve and was just wondering how much this is likely to cost, bearing in mind I may as well get them all done at the same time. Im worried about HC emmissions come MOT time....

Also, can anyone recommend anyone who specialises in this engine in my area (Suffolk, East anglia). Ive heard of 3SGE specialists, but google failed me

Thanks in advance,

Mike