he created the first school for the deaf
Start with gunpartscorp.com - they sometimes have Hopkins & Allen parts
Try e-gunparts.com
numrich
Numerich has schematics for nearly every fire-arm that was produced in quantity. You can find them on a search engine.
You havn't listed the body parts you already think are important but my advice is asking what body parts are not important
the three important parts are brain heart and lungs
The most important parts of the cell are rods and cones
They are two important parts of the water cycle.
ALL of the parts are important or they wouldn't have taken the trouble to make them .
As for value they sell in the $225 250 range in 90%+ condition. Numrich arms sold "hopkins allen" reproductions in the 60's and 70's and still has some parts available as does dixie gun works.
"There are many important parts of ceiling fixtures. In my opinion, the nuts and bolts are the most important parts. They hold everything together and keep the fixture attatched."
The important parts are its ear, mouth, tail, its urinary system, and its reproductive system.