With non t and g wood the only way to install that I would know of is to face nail or glue down. Gluing large boards probably will not work very well.

I have reclaimed and reused t and g flooring myself. The grooves and tongues need to be cleaned out before reusing.

On the vapor barrier I suggest using vapor barrier paint. I don't know of any other practical way to do it.

Tom W

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[SIGPIC] Diesel loving autocrossing grandpa Architect. 08 Dodge 3/4 ton with Cummins & six speed; I have had about 35 benzes. I have a 39 Studebaker Coupe Express pickup in which I have had installed a 617 turbo and a five speed manual.[SIGPIC]

..I also have a 427 Cobra replica with an aluminum chassis.