I would also like to agree with Mark's advice. The 60-62 economy or recirculating heater would be the simplest to both acquire and install. Only 2 cables are needed instead of the deluxe heaters' levers/cables/switch. There are lots of guys who will rip out the complete system in order to throw in an aftermarket AC system. So be on the lookout on Craigslist (through Jaxed.com) as well as eBay for that stuff. Be patient and you'll end up with exactly what you need for a reasonable price.
The econmy setup doesn't enter into the engine bay like the deluxe does, so that's a plus as well. Good luck
