There are no fully successful "no mod" SBS builds. All SBS builds are "know mod". If you have a tax stamp in hand, be sure you know exactly what you are doing before you cut that barrel or begin the process.
Honestly - If you really want an SBS that rocks, let a licensed expert do it. Call Tony, or Red Jacket, or yours truly. A truly successful SBS build requires more than a general idea, and inspiration.
Proceed with extreme caution. Maintain a very healthy respect for the platform, and be sure you have a realistic eye level relationship with your knowledge and abilities.
Good l