IM JUST STARTING OUT IN THE HOBBY WITH MY 12 YO SON. WE ARE STARTING WITH A 4' X 8' LAYOUT UNTIL SPACE PERMITTS. MY QUESTION IS.. I HEAR A LOT ABOUT TURNS AND LOCOS NOT BEING ABLE TO MAKE THE TURNS.. WE ARE LOOKING TO PURCHASE 3 TRAINS TO START A SPECTRUM DCC/ DASH 8-40CW A EMD SD-45 AND A STEAM 2-10-2. WILL THEY WORK ON THE 18" CURVED TRACK I HAVE IF NOT WHAT DCC IN THE BACHMAN LINE WILL WORK. ALSO IS THERE A WAY TO ADD SOUND TO THE BACHMANN DESILE TRAINS IM PURCHASING