Some more questions I'd like to ask you to help with your project. and a few suggestions
Is this hotel apart of a hotel chain or is it owned by individuals? Most hotel chains much use companies that they recommend for setup and support for their hotels. Some chains require this others only suggest it I'm sure they know this, but it wouldn't hurt to ask.
Does the company use Comcast Business class internet? If not, do they know there's a 250mb cap on the internet?
Is this hotel Enclosed ie. (walk ways are in the center of the hotel rather than outside) if it is inside you shouldn't have much trouble setting up the access points for every 3-4 rooms that is assuming normal wood construction. If there's concrete in-between the floors your in trouble and might have to do 5-6 rooms with AP's on both floors.
On top of the internet they are getting do they have a gateway already setup? Using a linksys, d-link or netgear router isn't going to handle 40+ guests on a full night, I would recommend a business gateway Nomadix AG-3100 so it can do load balancing and make sure no one customer takes all the internet for them self. This device will also have a built in portal that the hotel can use to setup weekly passwords to keep people from stealing their wireless. The Nomadix gateway also has a great support team that you can call and work with if for instance something goes wrong. Also the gateway supports Multiple IP's which is a must when it comes to 2+ people trying to connect to their company vpn from 1 location and something you'll never find on a cheap router make for home use.
If your looking to support this your self are you aware most hotel guess don't come in until either very early in the morning or very late at night, which can generate calls at any given time of the day if something goes wrong or fails to work.
One last suggestion if you saw telephone cables used in their setup I would highly recommended you run new cable, just for error rates alone. but in the process of doing that get access points that support POE and you can get a switch that can give it out that way you only have to run 1 cable to the desired location and you can reboot the devices remotely in the last job I had we did this to many hotels and it's saved us lots of money and time because you don't have to tell the hotel staff to unplug power from the devices, or have to wait until morning for the crew who knows where everything is.