Giving the players a full map (minus labels)

I think I am going to print out the whole map of the Lands of Barovia for my players when they try to buy one. When they learn "Where to go" from someone, then they can mark it themselves.

1. Where should I make it available? Vallaki?
2. Should it be the whole map or should I cut it into pieces?
3. Where can I find a good, unlabeled map for them?