I am about to receive my first gas engine, a G-62 with the full Ralph Ultra Light treatment and adjusted squish clearance. Should be awesome. However, this is by far the largest engine I have worked with and I have nothing remotely suitable as a test stand. What does everyone use for stands to run gassers like this? I would prefer something I can build myself, functional is much more important than pretty. Pics are always appreciated, websites, plans, etc.

Thanks,
Mark