I was going through some stuff the other day and came across my old n scale train set that I have not used in 30 years. Thought it would be fun to get it out and set it up again but they wouldnt work. I got power to the tracks and the engine went a couple of inches and then stopped My question is this due to the wheels and track probally needing a good cleaning. Also I was debating on buying a new small set like Bachmann that comes with everything to get me started again but was wondering will my old trains still work on that new system. I dont have any model railroad stores in my area so who's considered one of the better website dealers? Thanks for any assistance.