3 questions. - 3 sorta-answers
1) Lets just put It out there: taping roadbooks sucks. Although, some people (HogWild in talking to you!) enjoy watching others suffer as you described.
2) I've been searching around for a continuous roll printer, looks like most blueprint shops have roll fed printers 24" inches to 48" plus inches wide. Again, HogWild is way ahead of the game here. If there is sufficient demand, I would love to eventually purchase a roll fed printer and be able to produce and ship roadbooks to users within north America. Haven't really looked at it yet.
3) you are correct about the text box. For now, you can just cheat it by adding additional spaces.
Thanks for your patience as we get all of things sorted,