If I could find a very cheap or free Glider then maybe! But it would be difficult to squeeze in crash protection suitable for road use.
One of the more expensive parts of a glider, and one of the most easily damaged is the canopy so I doubt I would be able to pick one up cheap, flat panels and single curves however are relatively easy so that would probably be the way to go

Of course if you have an old jet canopy, erm cloche, lying around that you don't want

What I need to get now is a quote/best guess for supplying and bending up the main frame tubes,then we find out if it's financially do-able...