I have found a mobile welder that will do the shrouds for £300 plus a bonus for working at a weekend. This is troubling me a little as I can buy an AC TIG machine from China for £400 and then get the gas for another £100. I realise that this is more but I would then have the equipment for life. I have posted the question on a UK welding forum and the responses leave me feeling very demotivated. The people that say I should get the professional to do it outnumber the 'have a go yourself' brigade by some margin.
Talking of demotivated I looked at the car again this morning and knew that I needed to finish the door gaps, again. So I removed the rear wing and B post before cleaning it up:
I then took to the rear edge off the front wing with a grinder and literally ground the wing back to provide a better level of gap. I spent a few happy hours welding and grinding before repeating it again, and again.