Really after futzing around with the same thing (and Si5351's), depending on budget or commercial or hobby nature I found it was cheaper (than my time and patience) to buy a Rigol AWG and use that for this sort of stuff. You can plug an ethernet cable in it, hook it to your LAN and drive it via python remotely. Bonus I found out is you can crack the DG1022Z to push it from 25 to 60MHz ceiling
