Go for it!
That poster was on the front of the newspaper in Fayetteville, NC after one of our Freeps back in 2005.
Actually, I think I have the PDFs of that somewhere. I did it in AutoCAD (just because I use it all the time) on 4 sheets of 8-1/2” x 11 paper.
If you want me to locate them and e-mail them to you, let me know!