I think you would be bet served by waiting for Jim Briggs to contact you. And if you want to do barrel swapping your best bet is stay with the small shank action. Jim can get you an action for less money than buying that model 16 and from there the sky is the limit on aftermarket goodies. As for triggers, go with one from SharpShooterSupply, also a vendor here. its the best out there. Talk to Jim and he will give you all the infomation and stuff you need with the exception of the trigger. Good luck.

El Lobo