I’ll do it for one billion dollars, but if you want to get cheap labor, Scotty will probably do it for dollar less..
Kidding aside.. If you wan’t to try something yourself, I think you would achieve this with
Kalendar snippet and newsmanager / publisher.. But without knowing more how big reservation system you will be needing, I’m not sure if they will suit for you.. anyways, if you have for example 2 rooms, you could create a container for each room and make Kalendar list it’s "events" eg. reservations. Then if you want front end reservation thing, you could modify newsmanager snippet to create the document’s for those containers.. or you could use eform together with docmanager to create the documents.. And with Kalendar and Ditto you would be able to build the reservation listings and so on.. Paypal payment gateway would be pretty easy to throw in the mix, there is some threads about it in the forums. But if it’s something big that you want, a custom app for it is the right way to go and I hope you are able to hire someone to do it..