Here is an MTH PS-3 T-1 upgraded to ERR. Installed Cruise Cdr, RS, Super Chuff and Chuff generator. Also added a 5V Regulator board to drive the LED Engine Markers and Number board. Retained LED lighting were possible. Used wireless draw bar, and engine 10 pin harness to shell. All custom wired and no direct use of track power, everything powered from a circuit board.
Next was PS-1 Diesel Gas Turbine with Slave. No more slave kits so these have to be custom made.
Last is a Weaver Brass T1 getting PS-32 with smoke. Straight forward upgrade, though still working on the smoke unit mounting. Had to create a custom funnel for the dual stack. The rear stack actually has a pin on the rear internally. I use that to hang the back of the smoke unit. Need to finish the bracket to lock it in place, just need to ensure access for removal. G