That's a good question!
I've an idea too about running Tor into another environment but it is not realized at this time. In this case I've a configured and personalized operating system that installed on a created virtual hard drive (that created on a host machine), also including a software for possibility to run an another operating system in this environment. Then using host machine I've created a copy of installed system on virtual drive and placed her into directory on this virtual drive for possibility to chroot into it and keep packages of this system an up to date. Now I'm think about how to make an live iso image from this copy of system and store it on a physical drive in one partition with my virtual drive. Benefit of this is that you can boot from host machine with grub loader using iso image to work into live system and when it needed build a new live images stored on a physical drive when running from live system.
Sorry for my english but I think this can help you to think about something new. Best regards!