Directory

Hi Everyone,
I recently got a potential offer to create a directory for a small community near me. They first wanted to know how much I would charge…
So, any ideas of what it would make sense to charge… its out of town so not the type to charge aton…
All I know is that they have around 140 families that their info would be put in plus ads but they don’t know how many yet.
Also, Ive never done something like this so wanted to know how you would do it/ any specific advice in that regard? like size of paper, design advice cuz its pretty boring in gen., how to set up in indd (just create a bunch of facing pages?)
Any advice is helpful!!
thanks!