This is a 100% stock flashable zip of the recently released 4.4.2 firmware for the P5200. As it is 100% stock, it is fully bloated, odexed, and non-rooted. If you wish to attain root you can do so by flashing superSU-2.02 zip from chainfire. As of right now, no other root method appears to be working, including towelroot.
Download link below.
A deodexed + rooted build is also available.
NOTE: if you flash the deodexed version and have problems with root, flash UPDATE-SuperSU-v2.02.zip from here.
I don't anticipate any root problems, but just in case, this will fix it.
100% stock: STOCK-4.4.2-P5200(fixed).zip
Deodexed + rooted: STOCK-DEODEXED-ROOTED-4.4.2-P5200(fixed).zip
Anyone may feel free to use this as a base for their ROM. I only ask that you give me credit.