Well, actually the kit came with 3 cups of (Revell Aqua) base colors, a combined brush (one flatter brush, and a little round one. I guess size 1, but I have to check that) and Revell Contacta with the needle applicator. So I used that one.
I found the trick with the clamps after some reading on internet (boy, I learned a lot already. I painted the canopy by hand, before I found out about masking. But that's for later), and I used the clamps when I glued the wings together. I had to sand only a little bit, and the seams closed very nicely. The fuselage wouldn't fit in the wing opening, so that's where I needed to do the most sanding.
I'll remember the hint with letting the glue flow in the seam. I read somewhere that the Tamiya Extra Thin Cement is useful for that?
Thank you all for showing so much interest in my build