I am not sure if anyone mentioned it but you need a cow foot to make a good stock and if your wife does not like the smell put some ginger in it! that really helps. I use neck bones, one cow foot and whatever other meaty bone I can find. I put everything but the foot under the broiler (low down so it browns slowly and evenly)
put everything in the pot and just cover with water
Never boil just simmer with some onions or garlic if you can eat them, herbs of choosing gotta have some bay and allspice berries in there. whole peppercorns, and of course the ginger
oh and do not forget the ACV it draws the minerals out of the bones
lots of salt for me but salt to taste

simmer all day long then strain with a gentle hand and cool

the best richest stock takes careful browning, a long low simmer time.

Keep trying it is so worth it!

sometimes I start a pot on the weekend and then just add to it during the week. by the end of the week I have very rich soup fantastic!