Portable Digital Routed Track

I've been thinking about experimenting with a portable digital routed (PDR) track. The easiest approach, I think, would be to rout the track, and then drop in the plastic digital pieces. Given my constraints, it would have to be portable. I'm thinking that two 5'x3' sections combining to make 10'x3' (that is about 3.5m x 1m) would make a significant size for fun racing, but small enough to put in the back of my van or store under my current table. I'm thinking (of course) of a rally type track with some small elevation changes. Here are two preliminary plans that I drafted. I'm leaning toward plan #2 because it's simpler to make as my first go at this. I'd love to have any comments or suggestions.

PLAN #1


PLAN #2