The LDS - HUD and MAN - HUD stoppers are on 2 hour circuits so you’ve wildly over estimated those.Hull needs 10 185s to run daily as 6 car.
Leeds-Hudds stopper requires 3 185s
Hudds - Man Pic stopper needs 6 185s for 6 car running
Cleethorpes - MIA needs 14 185s for 6 car running (may be extended to Liverpool as per MRTF)
Saltburn takes 8 Nova 3 sets, which means at least 6, if not 8 sets of 185s will be required for Liverpool-Scarborough to run as 6 car..