Finally got her together... 460 Rowland.
My Smith reamed/threaded the barrel, made the Comp. and did the Picatinny "meld".
A touch of holster trim remains... and a final zero (bore sited only) on the Deltapoint... and she will be ready to hunt.
The barrel is only 10"... didn't do a 12" because I wouldn't want anyone to say I was compensating for something...