Thanks for the advice Captchee and others.  That's just what I was looking for.  Springfield is 2 hours south, but it sounds like it's well worth the drive.  This would indeed be a dedicated hunting rifle, so a shotgun butt is my intention.  Crescent buttplates are nice to look at, but I can't imagine shooting a big gun with one of those.  In fact I really dislike the hooked one on my Anshutz 1813 for the same reasons you mention.  It doesn't fit my shoulder.  Those smallbore wimps need to do more pushups...  I digress.  
As far as sights go, I like the ones on my M1 Garand the best 

 .  The first attempt will be a nice thick post up front with a buckhorn rear, we'll see if I can hit anything with those.  
The projectile will be a conical.  Balls are terrific up close, but even in the tight woods (brush) of the Oregon coast, the average shot is around 100 yards, so I imagine the retained energy of the conical is going to work better.
It's good to know there are double sets with a reasonable non-set mode.  The few I've tried haven't impressed me. 
No doubt, I am looking at a difficult project and have no illusions of creating a masterpiece, but with a daughter headed to Oregon State University next year, a custom built rifle for a tag I may not draw is not in the cards, besides that, I like difficult projects that are over my head.
Best regards,
-Brian