UPDATE:
I called Franchi / Benelli to get an estimate for the choke tubes, shims, and LOP adjusters and the first question from the CSR "did you buy this from Dicks?"...
He told me they had several calls and kindly pointed me where to buy the parts. Shims $15, choke tubes - $20-ish. Common to beretta and benelli and buy from midway, gunparts, etc..
That eases the blow since I only need the tube for now.
