New Nexus 7 2013 Rooted on 4.3. What ROMs work?

[fly4awhtgye]

I bought a 32 GB Nexus 7 2013 version today and already rooted it with TowelRoot and installed TWRP 2.8.2.2 via flashify. I have backed up the stock rooted setup.

Android version is still 4.3 with build number listed as JSS15J. I thought of flashing the CleanROM 4.0 released 12/10/14 that is Lollipop based.

Do I do anything else besides flashing the 4.04 flashable bootloader before flashing the ROM clean?

Thanks for the help.
Otherwise, what ROMs will flash on my current setup? Thanks so much.

 

[fly4awhtgye]

Update. Did as mentioned above and all is well. I'll figure out removing system apps to install signed blacked out ones shortly I guess. Gmail is an example...