Nov. 20, 2009 Just heard from the owner. Here are a few more details (dimensions) for you.

I'm not so sure the flywheel is original,on this type engine the engine itself is a flywheel,but in order to get this engine going they may have used it.dia.of flywheel is 2.50",and it weights 1/2 pounds. so much for the flywheel, the engine is 7.0" from plug to plug, o.d of cylinder is .892" and over the fins 1.140", spark plug dia.over thread is .305" and a 32 thread same as the v2 plug ,plug is .832 " long, engine stand is cast in bronze and I beleave to be factory made and not home cast, I also beleave the engine has been run.