THIS IS NOW OFFICIALLY SUPPORTED BY LIQUIDSMOOTH.
I am still doing some of my own builds too. All recent builds are ROM SLOT 3 ONLY.
Get it here: Dev-Host - The Ultimate Free File Hosting / File Sharing Service
This is heavily based on the STS-Dev Team (hashcode-dhacker29) and the liquid team sources. So a big thanks to them and to cyanogenmod, also to users fattire and redflea. Without their work-sources I will never have even tried this. This still has the same bugs as the other 4.2 roms.
As usually you are responsible for whatever you do to your device.