[petek]

I've used Cool Flex and I've used Fixit's suggestion. I'd add to Fixit's suggestion that you can take some card board and make a pattern of what bends and such you need from one point to the other. Take the cardboard cut out with you to the autostore. When I did they knew exactly what I was doing and allowed me to wander behind the counter and check the various hosed.

Don't forget to check the openings (diameters)!