Welcome in the forum, Eric!
So you will have to get another PSoC kit for the receiver. I would suggest you to purchase a CY8CKIT-043, cheapest solution.
You'll need a photo diode connected to the PSoC and probably an amplifier for the (weak) signal. Have a look at the -043 schematics how to do that, for the programming there is an example project (in Creator Start Page -> Kits).
For the Sender I's suggest to use a PWM component triggering an IR LED with a frequency of ~1-2kHz to make it easy to distinguish the signal from ambient light.
A while back there was also a discussion about how to implement a RC5 decoder. Look in the forums for it, it might be helpful.