Anyoen know what size brass wire I should use to replicate an antenna wire on a cab roof and also to replicate brake lines on the trucks? And will most hobby shops sell it?
Take a trip to you nearest Michaels or similar type craft store. Head for the bead section and look for wire rolls that crafters use for stringing beads. I got a roll of 24 yards of 30 gauge (.010 inches), 28 gauge (.013 inches), 26 gauge (.016 inches), and 20 gauge (.032 inches) for $5 a roll each, which is way less than you'd pay for model railroad wire. For $20, I figure I'm set for life for everything from antennas to grab irons.