No problem, Moto. The paper I used was supplied from this site:
http://www.mcgpaper.com/ , specifically this paper:
Ink Jet Water Slide Decal Paper. These guys are located here in the states, but I know a guy in the Netherlands that has done a B-17 project similar to mine, so I'm pretty sure you can find some closer to home. Just do an Internet search using the words from the second link, above.
All that said, I'm going to mention some of the issues I had using these sheets, just FYI.
I ordered the "Try It Kit" which only includes four sheets of paper. I used a mixed kit (transparent and white) because I needed both, so I had to be careful to get it right the first time. I suspect for your purposes, four sheets of transparent should be more than enough.
You print the sheets on an ink jet, but you also have to treat them afterwards so that the water doesn't wash the ink of the paper when you go to apply them. For my purposes, I had to cut the decals close to the ink and this caused some "bleeding" of the ink when I wet them. The decals are also rather thick. When looking at my model, you can actually see the edges where I cut them. They also cracked, ever so slightly, so, once again, if you look closely, you could see tiny little silver veins shooting through the decal. For your purposes, I would suggest cutting the paper to fit the key, rather than close to the ink, as I did. This might be a bit of work, however.
I think I would also suggest that you not, necessarily, try just the McGonigal paper. You might try various brands as some may not be as thick as the paper I used, and, therefore, may not have all the issues I described.
Let me know if I can help any further.
Ed.