Just wanted to put some feelers out to start. I've been sharing some ideas with a biologist and I'd like to collect a few different fungi from different leafcutting species. We may do RNA sequencing to identify and categorize the fungi if we get enough samples, but the first experiment I want to try is to culture the fungi and start a catalog of storage-stable cultures to be used for research or for anyone who gets a queen without fungus. This has been done before, but primarily for South American ants and at a research institution level (at least that I've found).
I can probably help pay for shipping and would probably need a big piece as possible. My former Acromyrmex queen's fungus was about 0.5 cm^3 and was quickly overtaken by Aspergillus and killed within 3 days after the queen died, so it may need to be a larger sample to survive shipping.
Just wanted to see who may be willing before I start making plans and ideas