I would connect to the new VPN from the base machine then use a virtual machine to connect to the old VPN. This way you have the more secure tunnel with the new VPN and you have another secure encrypted tunnel inside you initial tunnel.
"The DHS, which secures the nation’s border, in 2009 announced that it would conduct a “Civil Liberties Impact Assessment” of its suspicionless search-and-seizure policy pertaining to electronic devices "