The reason the bolt hole is short is to do with the variations between the various models, the butt is supposed to fit anything from an MLE to the #4, better to be a bit short for your stock bolt than to be the other way around, you can always take wood away but putting it back is a problem.
You need to find some alkanet root for your stock finish, alkanet root was used by the British gun trade for years to bring out the grain on walnut, you can find it at hobby shops where it's used for coloring in soap making. I found my supply via google ,just type in Alkanet root powder and you should find a source not to far from home ,mine was only 3000 miles away.

cheers
Pete