Some "muscle" or "wheelie" bikes bring good money here in the US, most don't. I'm not real knowledgable but the top of the order seems to be Schwinn Krates and Stingrays. Raleigh "Choppers" are popular but I've never heard of the Commando.
There are websites dedicated to that genre of bikes. You'd be better off asking there or maybe there are some "old school" fans over on the BMX board?
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“Life is not one damned thing after another. Life is one damned thing over and over.”
Edna St. Vincent Millay