What you are working towards sound very much the system I have here. It's certainly possible. Your wireless router should have come with either a quick start guide or a more extensive users manual - or both. If that's not the case, you should be able download them from the manufacturer's web site for that particular model. It's not easy to condense those instructions here without recounting almost everything that's in the manual itself, an some of them go to over 100 pages.
Setting up wireless routing to your laptops can be a bit challenging if you try and do everything at once. Get the router working for your desktop so it can connect to the internet (perhaps you've already passed that point) and
then set up the wireless network using only
one laptop to get the system going in the first instance. It may be easier if you do this initially without getting into the complications of wireless security - essential though it us; that
must be invoked once the system is running.
It's a step by step process - one thing at a time - and there should be adequate guidance in the manual itself or from Google. The manual is your friend. Persist, hang in there, take a break from time to time if the going gets heavy, and it will all come together.
The sense of power when you finally are able to print to the master box printer from the laptop at the other end of the house is worth it
.
Good luck, let us know how you go....
Regards
F.O. Rudder