HI Jason;
For engines alone... I don't know.... BUT if the engine is in an Airplane!
I swear by the Meroke Airplane Start up benches. They are primarily used at your field to assemble your plane and start or tune an engine. But there is nothing to say that you cannot build one for your own use at home!
Here's the link;
http://www.meroke.com/sbbuildinginstructions.htm
Good Luck!