I think it was just yesterday I was thinking of what became of the traction enthusiasts ?. I see lots of old brass traction in a local train store and wonder if it will ever get sold being both analog and trolley, not related to by the younger set ...I would make it overhead contact, not 2 rail..Or, it just won't give you that 'feeling'...Catenary might need to be thicker than desired to ward off stall outs...Good luck ..Mark