My main issue is I have a "dynamic" Ip but its dynamic between two different IPs.
I would prefer to go with a VPS rather than tethering or a dongle. But if your saying that I do not necessarily have to go with either new hardware or new masked connection, that's even better.
I can only assume, in this day and age it maybe rather cumbersome for PP and ebay to restrict accounts based on IP address' alone.