These were good engines. Sachs based cylinder design with a proprietary lower end. However, Precision Eagle is no more.

If the gent offering the engine will guarantee the condition I would consider purchasing it. You can always have someone like RC Ignition [Ralph Cunningham] check it out for you... It's worth the few bucks for shipping and a once over. Being this engine is at least five years old, it's been sitting around for a while...