Is it ok to use aluminum for a busbar, or power distribution block?

6D1DD825-E0BB-4E54-A311-4A99941D063C.jpeg Eaton 14-Terminal Ground Bar Kit-GBK1420CS - The Home Depot

OP, I’ve used a readily available “Ground/Neutral Bar” from HomeCheapo. Use the large lug for your feed and the smaller set screws for your circuits, add another large lug at the other side for your starter wire if needed. This setup eliminates your yellow crimp connectors too. Enclose this in a plastic hobby or electrical box for insulation purposes....