That's really nice, Jeremy @Jmillan!
I like a lot the bored out guns. I do the same, but use my mini drills for this (after stress-breaking many utmost tips of my Excel blades, upon twisting-drilling).
but I start to loose interest when I get to the point of putty and sanding of seam lines
I usually face the same situation. Moving to another already started project helps me a lot: after a while, motivation builds up!
and it’s definitely not perfect
Looks perfect to me!
Eagerly waiting for your motivation build up and next installment!