Thanks very much for your input Chris. I'm slowly getting my stuff together. I've got a better than average compressor and a few in line filters that are meant to remove oil. I've got two spray guns to experiment with. I'm just finishing off loads of work rebuilding the suspension on the car (front and rear) which will eventually mean no more shot blasting - so I can finally clean out the garage and make it dust free. The plastic sheeting has been bought.

I'm gonna respray my boot lid first and if that comes good I'll then move on to the doors.

Thanks again for your help