I'm coming out with a simple vacuum oven, looking for input.

Hello everyone. So I'm working on a vacuum oven with a focus on simplicity. Here's a shot of the current design. I got more shots on my site, http://highsimple.com/.



Here are some points that I want it to have,

• Dial temperature controls
• Vacuum gauge
• Hookups to a vacuum pump with a ball valve
• Pyrex for the main dish so I can blast into it and then use the same dish for heated vacuum purging
• Reasonably priced, shooting for around $500
• All in one device
• Reasonably sized

I'm looking for feedback to optimize the design before I go into manufacturing. I made a feedback form that you can fill out if you have some spare time, http://highsimple.com/feedback/, or just leave some comments/questions here.

I want to make sure I'm making something the community wants.

Thanks,
Motifaded