Excellent work as always!

Hapalopilus looks super promising. These were never the most perfect specimens, probably suffered abuse from the start on the populace street they were on. But they were also fairly young in the beginning and the traits were shared pretty uniformly amongst all of the mushrooms in the cluster, which makes me think they can be relied on for an ID.

Hapalopilus nidulans looks promising in its description, although Kuos pictures are limited. This is one time I really wish I had tested it with KOH.