I didn't have to do any of that with the Tikka action. My gunsmith just checked it for square and put it together. It's also nice that you don't have to install a new trigger with the Tikka. My next custom will also use a Tikka action and most likely a Brux barrel. I have already started thinking about what I want to build next. Only problem is the cost!
I look forward to seeing yours when it gets done!
With a 7STW I'm waiting for the 195's and hopefully they'll do the same.