I' save the ones that I remove and sell them to Jacob so he can install them on every train he has. Even at train shows I see more hornby and bachmann  rolling stock with kadees sold by old english blokes than the hook and loop. When I ask , they reply they just work better.   Have you ever thought some people want to use there trains and not spend countless hours trying to learn how to reverse their rakes without derailments or uncoupler with a big hump of plastic in the centre of the track. Besides how do you shunt the trucks with those damn hook and loops?

A scale tunnel for narrow gauge should be roughly  12 scale feet high and 15 16 ft wide.00 scale is 4mm to the foot and HO 3.5 mm. 48 to50mm  high for the opening and 60- 65 mm wide. They will pass through most n scale tunnels but are a little tight. Make your own like I did or try some Peco tunnel portals.

Are the metal wheels on the coaches and trucks insulated so I could pick up power from the tracks using wheel wipers or a wheel shaft wiper? Has any one done this to light up the interior of the coaches.

You do realize that Bachmann makes thousands of these a year. There really is no collectability in them. Limited edition I could see and understand. If some are discontinued yes ,like Gordon's coaches .But their are other makers of coaches out there, and with a little paint, done. Watching my 4 year old grandson struggle with those crappy hooks trying to take them apart and the whole train lifts together and bends the hooks, or come apart in the air and drop to the floor. With Kadee's he simply lifts the car straight up to disconnect , or he uses the under track magnets and then shunts the trucks. Yes he knows how to use them at 4 years old. If Bachmann would at least use NEM style couplers they would be easier to convert. I picked up 2 Thomas with coaches with James as well,grungy dirty but in perfect shape for $30 bucks CAD. Where is the collectability? Even in the UK and Australia they are converting to Kadee's as a whole because they find out their cars run better. I'll continue to change over any Thomas line he gets, and if I see some already converted at a train show, I'll snap them up right away.