Toto Tank Compatibility

I managed to break the tank after slipping over in the bathroom, and need to replace it. I am just renting the house so trying to find the cheaper solution. The tank is marked CST 703/704. It seems this is an older model? Are there any other Toto tanks that will fit the bowl? Bolt center spacing is 6 3/4", with a 2" flush valve. Thanks for any help...

The tank was a ST703 you may be able to still get one.
I have 27 in stock.
If you cannot get one in your area you can use a ST706 Carusoe tank it will fit.

Greetings ~ We too broke our CST 703 tank and need to replace the tank. Are there any recommendations for purchasing a replacement tank ? Or possibly a alternative tank that could be used as a retrofit. Thank you in advance for your thoughts.