I've got a pretty tight crawlspace under the house, also cluttered with A/C ducts, pipes etc. I can physically get into it but I prefer not to. The floor is dirt but relatively level and smooth. I want to do another run of CAT5 across this space, and there's enough obstructions that it's not easy to do from outside with fish poles. I wonder if it's feasible to use a little R/C truck or tracked vehicle to pull a fish line across. And if so, any recommendations for such a thing? Would need to be somewhat heavy so it can push aside flexible ductwork. Would be neat if it had a camera so I could also check for termites etc.