Your music director need only download and run the trial sofware and that costs nothing.  If you have the speakers is there still a working amplifier.  

Someone within the church must have an old computer to run the software.   You may be only a couple hundred dollars away from a working Carrolon.

My family just donated a complete system computer Church bells software and the complete General Hymn collection speakers and the amplifier with a total outlay of less than $2500.

Our donation went to St Rose Catholic Church in St Rose Illinois.

I now have plans to update a system for our local library replacing an old clock and tape system.

Mike