Getting to 11 legendary parts is possible in theory.
The way it works is the 1st legendary part is quite easy to get but as you get more it gets harder but not impossible.
There's over 110 body parts available now and every type of body part has at least 1 legendary.
Adding traps to the farm just for looks is a good idea, but I would prefer some more farm like decorations I can put in the shop as buildings. Currently there are only 11 buildings, this isn't a lot.
The update with the "Chamber" building is meant to be a quality of life update, if i can fix dragons to confine to that area you can try it out.
I made the backup and will now try to solve that bug.
Have fun playing!