I think the track theme is good but not as practical as the workshop theme. it is alot easier to set up the workshop, have a few car of stands, a few of those big red tool boxes, scattered tool, those massive oil tins, funnels, sparkies, leads scattered, even those big industrial fans, ppl could dress in overalls, also those big jacks, those sliding boards you lay on, cant think what they're called.....
my 2 cents....'
good luck guys.....i c u all out there