For what it is worth,I think i'll buy a barrel,likely a Wilson.Old school would work,and it is cheaper,but it is not as good as a well fit new bbl.And the insert/weld lacks resale.
Thanks again,all,for your response.
So,its getting an STI beavertail,24-7 big dot tritium,likely a Nowlin trigger kit,a wilson bbl,and long trigger.I'm toying with the bobtail mainspring housing idea.
As it is stainless and I will have some $ in it,thoughts on armalloy,hardchrome,electroless nickel? I'm not so much about cosmetics,I like flat black,but wear/gall,etc