John, welcome and nice find.
The link is only to one of the pics so i put in for you the link to the whole album,
http://s330.photobucket.com/albums/l...erman%20Luger/
but it would be best if you would post those pics on the forum itself as some users have some problems to connect to photobucket.
Registered users can post ther pictures in the album section here.
btw. The parts you need seems to be the sideplate, take down lever, and take down lever spring.
Those parts should be easy to get but the sideplate could require some fitting.
But as cma22inc says, Take a long and good look for those parts in the house.