Control box design needed for medical device

This is what Dr. Clark Research Association was looking for in their 3D design

We are creating a high quality, Far Infrared Heating Pad, that will be made from Jade stones, it will look much like this
http://www.amazon.com/Clark-LARGE-Infrared-Jade-Heating/dp/B00G6LCZBO

We need a new design for the control box. The client has given us input how they would like it and we need someone to come up with a design and once approved by client, with the 3D graphic file needed for the Chinese to make the mold. We are under pressed for time.

I am attaching the old design and two competitors' designs that the client found appealing. The control needs these features:
1) an LCD or LED screen
2) an ON/OFF button
3) buttons to set the temperature -heat and +heat and
4) buttons to set the timer -time and + time

The exact dimensions of the control box will depend on the design as the parts such as the transformer need to be fitted. The process will be:
1) rough design suggestions
2) client giving feedback what he likes
3)… Read more