Small update, I did a second test print this week with some tweaks, will need to do another though to see if I can get it nicer and more the way I want. I wish I could just use my printer at home, it does large sizes as well but it would just cost way to much, so I'm just going to have to do a few tweaks then check it at the store.. the print is close though so it shouldn't be much of a problem.
I tested folding and it doesn't work very good. Its thicker paper and not colored so after folding and unfolding many times you start to get cracking in the surface with small amounts of white paper showing through. So I will have to roll it up into a box to ship it like I was planning. I'm guessing most people won't want to fold it anyway.