Hi,
A few things to help in your search...
1. 1953 Kaisers never had HALF MOON hubcaps. The 1953 Deluxe was factory equipped with a hub cap with the Black K emblem like the big wheel discs. Also, you may be interested in knowing that according to the 1952-53 Kaiser parts supplement to the 1951 Kaiser book, the larger Manhattan-style discs were a dealer installed accessory or could be factory installed at extra cost if you were picking up your new 1953 Kaiser deluxe at the factory delivery center. Half Moon caps were used only on 1947-48 model year cars.
2. By "exterior lock" do you mean the door handle or the actual latch mechanism? Do you also need the rest of the locking assembly in either case?
3. The trim rings around the headlight are stainless. According to a memo on the doors, you need to know which of the 3 types of rings you need (or can use) because each type has a different type of mounting.