Greetings to you, good sir, and thank you for this roundup!
I do agree 100% with your assessment that there are no good free VPNs for P2P. To think otherwise is to delude oneself because safety is just not good enough.
I would also like to spread the word about the service I’ve been using for close to 2 years now for numerous purposes including P2P. I speak, of course, of AirVPN which is, in my humble opinion, a nearly perfect tool for flying under the radar on the Internet. Its security, namely its analogue of kill switch, is very strong and I haven’t received any spam from my ISP talking nonsense about my use of torrenting once since I started using Air.
As to its current price, I cannot speak, because I bought it quite a while ago but I don’t believe it’s much higher than that of most other VPNs.