I've lived in tipis for a few years. Also built and lived in a yurt for a spell. Never sewed my own tipi though.
As far as transporting the poles - I've moved many a set on a plain old wood rack on my pickup, without a front bumper rack (up to poles for about a 17' lodge).
For plans to sew your own, as well as painting, use, options, tricks, history, and whatever else you want to know, there is no better resource out there than the book "The Indian Tipi" by Reginald and Gladys Laubin. It is the definitive text on the subject, and very readable.
I went back and read all the posts Bryan, and want to focus on your draw to the tipi.
Make no mistake, I appreciate the qualities of yurts, and bell tents, but I will say this (as I have for decades): No dwelling has the same feeling of beauty and magic as the tipi. It's calling you.