I'm having trouble deciding  how to run the tube/ which type of tube to

I’m having trouble deciding how to run the tube/ which type of tube to run. I have to come from the top back, back or right hand side in my setup.

Curly cord, airbrush size, compressor size, straight tube, tube in guide. I was about to get the curly airbrush tube, as i can see its being used but I havent seen what happens when the head gets to the side of the lead (ie. how it bunches or not).

I have the MPQ-903 12v air pump http://en.resun-china.com.cn/products_detail/&productId=415.html

I vote for silicone tube in drag chains. it seems to be the neatest and cleanest way of doing it.