Here's my thoughts Mike,
1. What would you pay for a basic off the shelf boxlock double rifle with full length ribs and express sights?
6K plus
2. I need a list of top three rimmed calibers wanted and expected weight for each one.
9.3X74R, 450/400, 450NE, 500 NE
3. Barrel length?
26"

4. What is the least amount of and what kind of engraving would you expect it to have standard? None for the basic rifle, more as options
5. What options interest you? i.e. scope mounts, ejectors, more engraving, auto safety, upgraded wood and so on.

Options of a Tally QD oe EAW or Claws The option of upgraded wood ect is a must.

6. If scope mount what kind?
Leupold as the basic with options for others as requested.
7. Stock dimensions for off the shelf? 15" LOP so it can be cut down if needed

8. Style of butt pad?
Silvers.