[car killer]

After looking round on here for a while i notice alot of people use alot of Tomei parts but i haven't noticed anyone with a complete Tomei engine, just looked on ther site and a complete engine shipped with trade in took off is only £6828 which doesn't seem to bad a price for the name.Thats for the Derive engine.
Has anyone used any of the engines they list??
TOMEI WEB Catalog