We have a shop in town that got its start from a very similar trove of bikes. They bought out a place at the coast where the guy was intending to rent out bikes. Mostly I think he just disassembled them. Not sure how that was going to work for renting... but anyway. The trove became the basis for a business selling used bikes and parts, trading parts, etc. Now one of my favorite shops. It's a couple years later and the shop is going strong. Maybe your co-op can really make something of it. Good luck!

Karl