Wow, didn't realize this build has been on XDA since January? Didn't realize the dates... Strangely I never noticed thus thread???
Is the build/thread still active? The DL page says the ROM was posted in January...
If you want a build with all the latest whistles (SlimNavbar, SlimGlobalMenu, SlimPIE, SlimRecents etc. etc.) for flounder, you could give the ROM I compile a testdrive.
It's pure SlimLP with stock Google kernel, with Gerrit stuff added (so stuff to come is already in) and had Layers 2.1 support.
You can find all the details in my OP here :
http://forum.xda-developers.com/showpost.php?p=55121807&postcount=14
I keep my ROMs updated at the same level all the time, so whenever there's an update, it will be for N5, N6, N7-2013 (WiFi) and N9.
I don't know if there are others sharing flounder SlimLP builds, but if there are, you should manage to find out in the builders collective (thread where the post above is in).
JP.
PS: No idea if the ROM will properly support LTE, I have a WiFi only myself, but as I said a few posts back, there is only one N9 (flounder) device repo, where there were 2 for the N7-2013 (flo and deb)-