A 2-seater on a homemade, likely open without brakes, trailer is guaranteed

to be a pig in gas and likely increase oil consumption.

I'd want to know about the tires and bearings.

Last two folks I know bought a glider blew a tire and also had to replace a

fender.

Safest option is inside a semi with provision to allow trailer springs to
cushion glider.

There's businesses that arrange transport of cars by rail. They might take

trailers.