Transit First standardised for a while on Custom 510 bodied Mercedes O405 buses like 99 (MO7882) seen arriving at Liverpool Station over Christmas 2003.
 
Earlier Custom 510 bodied Mercedes O405 94 (MO7382) seen on rail replacement work over Christmas 2003 period.
 
Like 99, 97 (MO7804), seen on the same day at Liverpool, was one of a trio acquired from a cancelled Bathurst Coaches order.
 
Seen at Chatswood on post Christmas rail replacement service in December 2003 is Transit First Csepel 844.19 86 (MO619) with Custom 510 body. It was acquired with the Bankstown-Strathfield Bus Service company.
 
Also "playing trains" in Chatswood was similarly bodied Mercedes O405 95 (MO7659).