Does anybody have the measurements in pixels for chest, leg, and face parts for custom decals also would double sided tape and regular paper work (i do not want anything permanent if you have any other ideas)

In terms of non-permanent application - I would try to print on glossy photo paper. Then I would use clear scotch tape to tape over it and seal it rather than using double sided tape.

You can find templates (from which you can eventually get pixels or other unit measurements) for minifigure parts and other items in this Templates Index.