Awesome! Be vary careful of the cleaning on the decal areas. SM Oil only.
if you shine a flashlight through the bonnet hole from behind you will see either a square of triangular opening, that is the key shape you need to make or buy. The same shape will work the drawer locks.
Also, on the treadle irons, look where the dress guard covers the big drive wheel. You will see a bump. in that bump should be a smooth hard rubber ball. it will most likely need replacing. That ball is thereto prevent the machine from being able to be run backwards. Any rotation backwards and you have a couple minutes of thread tangles around the looper to deal with. They are available on EBay.