Cyanogen is all but dead friend. I know I'll get shit but you want a tablet YOU control? Get one of those Windows 10 tablets, nice thing about those is since its a desktop OS you can run something like ShutUp10 and run a nice light third party firewall to make sure nothing gets out that YOU don't approve of. You can also replace all the default apps with any programs you normally use on a desktop, replace the browser with Pale Moon or Comodo Dragon, replace the trial of office 365 with LibreOffice, etc.They have them starting at $47 on Amazon for the 7 inch models but personally I'd spend a little more and get one of the 2GB models because you can never have too much RAM.
I'm just glad I hung onto my little netbook, I can run any OS from BSD to XP on it, was easily upgraded to 8GB of RAM, thanks to the AMD APU I can use it as a 1080P HTPC and even after 5 years I still get nearly 3 and a half hours on a battery. Now I just need to get off my behind and upgrade the HDD with an SSD, its a bit of a PITA to do with one of those EEEs but I've seen vids of the performance gains you get on one when you do it so its worth the hassle.