I have an older model ProCaster that I no longer need. I purchased it new around about when they first were released, and it sat unopened in my storage locker until last year, when I mounted it for a month or so on my roof.
It worked well and sounded good, although in all honesty it doesn't have the range or the sound of the Rangemaster (at least in my opinion and experience). The advantage of the ProCaster is that it's almost plug and play - very easy to set up. It is in virtually brand new condition. It has the antenna and the audio interface including power supply. I can also include a short length of 4 conductor cable to hook up the interface to the transmitter (maybe 25 feet or so) if it's wanted.
I'm asking $275 plus the actual cost of shipping, which I estimate at $20 to Canada and $25 to the U.S.
If you're interested, contact me via this Forum.