I've done two of them myself. I'm not sure you could get it done for 1000 dollars. That won't cover the cost of speakers, wires, and volume controls. You may want to consider doing less rooms at once if budget is a big issue. I'm in the middle of doing 8 rooms plus one outside set. Not including the outside set, or labor, it cost me 1565 before tax. That was with me putting a single, dual voice coil, speaker in the room. Pairs will be more expensive.
Most any reciever will work. But there are a couple things to keep in mind. First, make sure that all volume controls are impedance matched. Otherwise, you will kill the reciever in no time. Second, it's not a bad idea to use an impedance matched speaker selector to run all the speakers to and then run that to the receiver. Keep in mind, that if you want to run mulitple speakers at once, you will probably need quite a bit of current. That is where the reciever choice comes into play. It may be a good idea to run a separate amplifier to the outside speakers, as these will tend to be played louder than the others just because of location.
Most any reciever will work. But there are a couple things to keep in mind. First, make sure that all volume controls are impedance matched. Otherwise, you will kill the reciever in no time. Second, it's not a bad idea to use an impedance matched speaker selector to run all the speakers to and then run that to the receiver. Keep in mind, that if you want to run mulitple speakers at once, you will probably need quite a bit of current. That is where the reciever choice comes into play. It may be a good idea to run a separate amplifier to the outside speakers, as these will tend to be played louder than the others just because of location.