Moss do them for less than £170. The product code suggests they are Frost's, so I assume they do them too.thank you for that, very interesting company, I think by looking at their website they are doing business in S-Africa only, and it would be a bit to expensive to export a DIY kit to the UK, I have found a few sites here and for a small set up like yours (10ltr) cost about £170.
I most definately get one when my project's body resto-work is all done (October). How are you getting on with your welding?
Moss Plating kits