Thanks Marq. I have found a guy who's located in Gdansk, he's a stockist of "some" Interlux paints but isn't sure he's got any stock of the Brightside in Gloss Black. He's on holiday just now, hence his inability to give me an answer. Sounds like a one man band operation, so I'll have to wait till he's back off holiday to find an answer.
I'll buy 4 litres so if he doesn't stock maybe he'll get some, my problem is I leave here beginning of September, so the clock is ticking.
Let me ask whilst I'm writing, do I need any of the #333 thinners for anything whatsoever, if I do I'll get some, I don't want to get stuck for lack of something simple?
By the way, very helpful forum and it's been a pleasure reading all this regardless of how my project turns out. I really have learned a great deal about the "mysteries" of painting a car.