Hi Liz,
There is also the Greensborough Motor Inn. It is on Greensborough Road - which is a main road but you dont actually hear the noise too much. (and it is much better than Sydney Road).
You would be about 15 minutes away from the bowl.
Sorry I cant help you much out the other side but I dont know that side of Melbourne as well as I know the Mill Park/Greensborough belt.
If you are still having troubles, send me a pm containing your phone number and I will give you a call and try a work something out.
Regards,
Ann