A couple of things here ...
Owner's wish was to have the eyesore removed and have a normal butt stock. He gave no consideration to anything else. So I am kinda stuck there.
Next, not to offend anyone here, but I utterly despise one sided decoration. Just don't like it. Think it always looks like someone was too lazy or too cheap to do both sides. JMHO
I follow some advice I once heard from a guy named Dirty Harry Callahan ...
Inlay work of that caliber is just not in my wheel house at the moment. I have delved into it and done several hours of making cavities and filling them but the work I have done so far I would not put out in the public domain. Not ready for prime time. I am kinda selfish in the fact I won't do anything for anyone that I don't believe is the very best I can do at a given task with my knowledge and skill set. If not on that level I just don't do it.
Your way may be better, probably is, but my limited abilities dictated another route that would satisfy the owner.