My raspberry pis are my VPN servers and they connect to the proxies. I have the proxies off site, my IP is never seen just the IP of the proxies. Like I said really paranoid.
I still don't understand. If you have foreign proxies why bother with the pis at all? What do they add besides latency?
can't speak for anyone else, but I've been using a pi to manage connections - it has tor, i2p, openvpn etc. set up to connect outbound, but only accepts a single ssh-forwarded proxy, which automatically determines which connection to forward it through. it's not any more secure or anything, it's just simpler to manage on the client machine.