im buliding a model of a roller coaster. i actually design them so i dont want a kit. i need a circle rail. not like the train rails but circle rails. i know the 2 rails are going to be 3 in apart. i will have to have alot. can you buy them at home depot or any hard ware store. the whole model will be made of metal. i need them to be as big that small wheels can fit on the rail. im 13 so i need help. i need it to be perfectly round.:thumbs_up:
