Default [Q] Unpack tools for RK 2818 update.img

Hi guys, I've been given an old tablet by a member of the family asking if I can get it updated so they can use the kindle app. This seams simple enough but I've hit a problem

I've found a rom that works fine but it advises to repack the kernel from another rom to keep hardware like the trackball working. Ok simple enough I need certain tools to this (AFPTool.exe and ATPTool.exe) however I cant seam to find a working link for these files they always seam to lead me to old mediafire links that are dead.

I don't suppose any kind soul would be able to point me in the right direction for the files to repack these system images?