I'll have to do more homework on the diameter issue as I'm not following that unless we're talking the size of the oval track shape that it ships with.

Are we talking the radius of the turns?

If I switch to all brass track or even stay with this track, is the power unit that came with this kit enough to power this train over the length of the track? Let's just say we're doing the entire perimeter of a 12x14 bedroom for discussion sake.

Hello,

I purchased a Thomas G scale set for my little guy and plan to put the train up in his room after we move (building the shelf that circles the entire room for it to run on about a foot or so down from the ceiling) and had some questions about buying more track.

I'm obviously going to need a LOT of track. Is ebay the best resource for getting the track without paying through the nose for it? Does anyone make longer track sections than the 12" long straights that Bachmann sells. The local hobby shop (Entertrainment Junction) sells brass sections of track that are 3 feet long each but the guy I talked to said the tracks are different.

I'm also wanting to keep it uniform and make sure it's compatible with other trains later on down the road. I'm sure when he's 10, he wont want Thomas in his room and want to be able to put a less juvenile set on the track.

Thanks in advance for the advice.