Got the call from the dealer yesterday that the paperwork on the SBS came in.
I'm really digging the cowitness RMR mount. Scalarworks makes an Aimpoint Micro version, too.
Gotta Love Italian Shotguns... 14", 5+1, Scalarworks Sync mount, and I shortened the LOP to 12"

I think it still needs some kind of light... I might fabricate my own mount as everything I've seen isn't streamlined enough for my liking.
I'm also thinking about getting a second barrel for it just to chop back to 11"... but M2 barrels are pretty pricey just to fool around with like that.

I might make a detailed post on how I shortened the stock if anyone is interested, because the giant fullsize stocks benelli puts on their M2 entry models is silly... but I just took the factory stock and chopped it down as far as I could (before interfering with the sling loops and recoil spring tube) and then installed a new rear plate so I could fit a thin Pachmeyer grind-to-fit buttpad. For the less ambitious, you can buy almost the same thing with the Mesa Tactical Urbino stock that offers a 12.5" LOP... but it's like $150. I like my solution because its WAY cheaper and retains more of the factory parts and look.

See above.