Here is a NIB engine that I purchased from eBay for $26.  I set it up and run it for the first time in the video below.  I had some difficulty getting it to run initially.  It turns out that the low speed needle was closed too much.  This was either done at the factory or the previous owner was messing with it.  I am certain that this engine had never seen fuel before due to the inside condition and smell of the engine.  Once the low speed was readjusted it the engine had started easily and was tuned quickly..  It should be a great running engine.  I have owned 4 of these engines and in the past was well as several of their sister engines the GMS 40/47 ABC engines.