Most likely it is not the spring but the slot in the top rib extension that is worn causing the top lever to the left.
The ebony tip should be vase or bell shaped, not a "V" at this time.
Some the early firing pins were round with a 1/4" slot in them for retaining the set screw. The newer ones had a hour glass shape. You would have to have someone make one as they are not available.
If the stock is original, the other things can be fixed at a reasonable price. For this being an E Grade, you do not see many of these.
To add photos, you need an image hosting site, like Photobucket. It is free. You could send the pictures to me and I could post them for you.