Where to get stock firmware?

[YAYTech]

I'm on 4.2.2 rooted with Sunshine. I'd like to update to 4.4.4 and keep root. I can't find firmware images anywhere (finding a lot of broken links). Help?

 

[hyfurd2112]

Sammobile has a lot of great firmwares.

 

[doogald]

Here? http://motofirmware.center/files/category/18-droid-maxx/