Not sure I appreciate the distinction between travel and transport. Nor do I see how LVT will have much impact on the demand for transport.

But you are right to scare-quote eco-tax". We are talking resource taxes, of which land tax is an obvious example.

My argument in http://joeotten.blogspot.com/2006/01/environment-environment-environment.html
does perhaps see fuel tax as more of a resource tax than a sin tax."