Hi Beejay,
If its a syndicate your after you could browse this forum
Syndicates - Australian Horse & Greyhound Racing Forum it contains information on current and past syndicates giving you prices. Syndicates usually work by offering the syndicate member a share from 5% and above for a certain price.
Syndicate prices can vary from $100 to literally thousands. A good place to start would be
Team Bundy Greyhound Syndicates or
WinningGlory Syndications - Home these 2 are the main syndicates active on our site.
If you have any questions regarding syndicates it might be a good idea to message bundy or rob.
In regards to ownership a good place to start would be
Greyhound Classifieds and also
Just Greyhounds - Australian Greyhound Stud Dogs / Sires & More both of these sites sell greyhounds and greyhound related products and
Just Greyhounds - Australian Greyhound Stud Dogs / Sires & More has a lot of information on there to help you with you decision.
Another site you could look at is
GRV that has some great information if you look under the ownership and training tabs.
Hope this helps