twister5voy wrote:... My thought was using some kind of magnetic bracket to attach the poles to the outside of my car. Something like the picture below.
Has anyone done this/heard of something like this being done? Thoughts? Concerns?
Concerns, many many concerns.
Magnets are a very bad idea. Envision driving down the single lane highway towards Gerlach and a semi passes you going the other way. The resulting turbulence would very likely pull the magnetic brackets off your car and now your 10 foot pcv poles hit the pavement, smash and fly up towards the 5 cars behind you (going 60 miles per hour)... I will stop there.
Most vehicles can handle a roof rack of some sort. If that is not feasible due to costs (a roof rack for my Civic ran about $1000), you could ratchet strap the poles together and then wrap them in blankets and ratchet that (using at least 4 straps) to the roof of your car. I mean putting the straps through the inside and over the roof (properly placed, the doors should close fine). I used a cargo bag like that for getting the extra stuff onto the beetle we drove.