I'm guessing you're looking for a dedicated proxy? If so, I'm also looking for something very similar. There seems to be very little documentation and information available for this though.
I was hoping to have a my servers act like a dedicated proxy bridge between my personal computers and the Internet (based off each IP). There's many benefits to this, if done right. I would even be willing to pay, if someone can point me onto a reliable source.
If it helps, there's an open source HTTPS proxy which can be found @
www.squid-cache.org