OK. Regardless fair enough. For one, it is spelled rappell. If you wanna get some rope training peaceably going, pass the hat around & send 1 of your guys to take a National Cave Rescue Comision:
http://www.caves.org/io/ncrc/
You might as well learn it all, since Alkabama as you know is plumb full of those damn caves! Level 1 courses typicaly cost about $150 per person and take six days over two long wekends. They can sugewst the minimum gear you will need. Go readily caving with some regular cavers in your area to get the hang of the environment. Then go do some climbing while you're at it to see that end of things. Pretty soon you'll want your own personal gear and you won't worry about costs aynmore.
Good luck. You might scrounge up some cheap used gear by meeting cavers and climbers.