Nice work so far, Tony!
A few quick question for you:
Your builds always have metal tracks. I just got my first set of FriulModel tracks for a Merkava I'm working on. I'm using 0.5 mm brass rod instead of the brass wire supplied with the tracks. Do you find that you have to glue in the rod/wire, or does the brass sit fine with just a hard push into the white metal?
Do you chemically blacken or just paint your tracks?
Do you use an assembly jig for putting them together, or do it by hand?