I am interested in converting my Large Scale Thomas locomotives to radio control/battery power.  Currently looking at CVP Airwire and Crest T.E. systems.  Also, what voltage to use  for battery?

Any thoughts, recommendations would be helpful.

   I have a number of bachmann trains (thomas). I am looking for a glue I can use(that will work) to glue parts back onto the bodies etc. I have tried CA, the glues sold for the plastic building parts, Tenra x-7. I can not find      anything sofar that will work.