It’s a little hard to get things here where I live but I have found a shop that sells stranded wire in the following areas. 1,5 mm^2, 2,5 mm^2 and 4,0 mm^2. This is around 15-16 AWG, close to 13 AWG and close to 11 AWG.
I’m planning to use the 1,5 mm^2 wire for track feeders and the 2,5 mm^2 wire for the bus. I just tested the 4.0 mm^2 wire for the bus but my 3M 905 Self-Stripping Electrical Tap Connector will not close so I think I must use the 2,5 mm^2 wire for the bus. Or maybe there is a solution so I can use the 4 mm^2?
So will 1,5 mm^2 wire be ok for feeders and 2,5 mm^2 wire ok for the bus?