Suzuki V6 and Honda V6 engine options give the T-51 slightly increased performance over the Rotax powered models, especially in the usable load and climb area, not to mention the increased prop diameter and growling engine note.  The aircraft comes as a comprehensive kitset with an estimated build time starting at 2000 hours (this figure can vary significantly depending on installation options, builder experience and skill, paint, avionics, etc.) and includes all required material, components and fasteners.  A significant portion of the kit is assembled at the factory, including the entire centre section complete with landing gear installed, the wing and horiz stab leading edges, the vertical stabilizer, control surfaces, the entire fuselage steel structure, and many other parts that remove the possibility of builder error and aid in a smooth building process.  The kit does not however include the engine, propeller and instruments because of different customer preferences. When equipped with the Rotax 912S engine, controllable propeller, and a full compliment of necessary flight instruments; we expect the finished T-51 could cost under US$90,000.00.  This is a very customisable aircraft that can be tailored to suit a variety of options. Quick build kits are also available - "Fast Build with Flush Rivets", these are built to factory specs in the Phillipines with solid rivets instead of the usual pop rivets and are complete apart from plumbing, wiring, avionics, some finishing details, and engine installation...great for those not interested in building and waiting, or those without kitset construction knowledge and experience.