David,
All these APs are supported in 200.7 firmware. So, you can create a single unleashed network and manage them in 200.7. However, if you want to use the latest version(200.9) for wave 2 APs, there is one more solution.
Create separate unleashed networks with a different IP range for wave 1 and wave 2 APs.
Manage R600 and R310(wave 1) APs in 200.7 and (R710 and R720) in 200.9
Note that these two networks should be in a different IP range.
- Anusha