Thanks all, can not find a mechanic who is willing to do the job, they don't specifically say no but say things like we are too busy, dont have enough staff, can not source the part, dont return my calls. Very dissapoiting as I am happy to pay for it to be repaired but no one will do it. I think part of it is also that they have never changed the evaporator before, most I have spoken to have said they have not done it before or its been 8 years since. Did find one but said it would take 6-7 days of work????
Wish there was a decent AC mobile unit I could plug into the USB port, one which I didnt have to fill with Ice and water every day.