Depending on your budget...a good camera tripod bag would work well. I use a manfrotto bag for my EQ6 tripod and it even has extra padding at the end to protect the azimuth adjustment post
I use a soft trombone bag which is not only the right length but is large aat one end (I wouldnt buy a trombone bag specifically to store tripods, because they arent cheap at $155. It can store my refractor, tripod and lenses etc.)
I can't believe how hard it is to buy a tripod bag locally! Most of the decent priced ones of eBay come from China. Hate buying stuff from there because it takes 3 weeks to get here!