[gentoo-user] Install Gentoo on remote server

[Grant]

I'm getting ready to install Gentoo on a remote bare metal server at SoftLayer:

http://knowledgelayer.softlayer.com/procedure/mount-iso-bare-metal-server

Option 1 requires that I have "infrastructure deployed on SoftLayer"
which I guess means a second server there which I don't have.  Option
2 seems to require that I have a NAS at SoftLayer which I don't have.
That leaves me with Option 3 which requires that I set up a VPN
connection, enable java in my browser, and download "Java iKVM
viewer".

Is there a better way?  If not, is there an easy way to set up that
VPN connection?  I've always read that OpenVPN is a bear and I've been
lucky enough to avoid needing it all this time.

- Grant