Rig breast physcis and weight paint character in PMX editor

One of my former model designers only did a half job. The models do not have all the body physics and necessary weight painting. There are about 10 models who each need jiggle/butt physics, along with programmable expressions added with the necessary weight painting before I can begin using the models in MMD. The characters file format is .pmx. I need someone who is an expert in PMX editor (English or Japanese version is fine) who can do the above for me. Knowledge of other 3D programs will not help. Please do not bid unless you are comfortable and able to work with PMX Editor.