Playing Devil's Advocate here: are we sure he is original owner? The docs also change his story about original rally wheels being stolen... but he's got to be over 70 now, no offense anyone!
There's also some aftermarket items under the hood.
And if you buy it, I have some bumper guard cores... Still, car has great curb appeal and certainly will hold it's own at a cruise night like it is in your photos.
As to L35 v L34 - I'll let others speculate on that.
Cheers, good luck.
Anthony