If you ever have trouble with your hose buzzing your tire just coil it around the seat post. I do that on my Nickel and it works like a charm. My KS used to rub on the tire so bad that it wore through the housing all the way.
If you do I would sugest the smaller travel one. I have the larger travel and the hose gets pretty long in the full down possition which it will be most of the time on this bike. So I think it would be better to have less hose out the back to catch on stuff but still have the quick seat hight adjust while racing/riding of need be.