Differences:
-BM features selling Power and Fluids, what is not implemented yet in my mod
-BM takes taxes for buying and selling stuff, wich my mod doesn't
-BM makes orders/sells determined by time, wheres my mods make them immediately
-BM has dynamic prices, whereas mine are fixed
In theory the mods should be compatible, with both keeping their own interactions, I would test it but at the current Version black market is not working for me