Here is the stock seat, which is currently attached.
The installation of the Corbin seat necessitated the shaving off of the top of the tool tray (seen below).
 

 
The two aluminium collar assemblies to the lower right of the tool tray
are from Sternmutterersatz
They are for damaged threads on exhaust flanges
(the left cylinder has damaged threads, but the right is fine,
and the finned exhaust nut on it spins with buttery smoothness).
 
If you look carefully on the video of the cold start (at 5,6,and 11 seconds into the video),
you can see the Sternmutter collar on the left cylinder.
 

 
I cut off about 0.5" of the connecting tube between the two exhaust pipes.
Everything is still sealed, but a shorter connecting tube makes disassembly and assembly of the entire exhaust system significantly easier.
 

 

 
You'll notice the tool kit above. Amazing quality.
And they're all stamped with "West Germany" or "W Germany", so they're a great conversation piece in themselves.
 

 
There is also the original mechanic's rag with BMW woven into the material (see below).
 

 
Photo also shows the second, higher windshield for the Parabellum fairing,
a brand new K&N cleanable filter (the paper one is still good, and in the machine),
the exhaust collar wrench,
and the stock handlebar (sport bars are currently on the bike).
The stock handlebar still has its slightly longer cables (shown below).
 

 
The photo above shows the stock, squarish valve covers,
a couple of different lengths of brake hose for the stock handlebar,
the old horn (I have a Fiamm unit on there now),
stock hand grips (I have Oxford heated grips on there now),
and the stock rear view mirrors (black friction tape covering some damaged chrome).
 
Following are some close-ups of the various paint imperfections.
It's important to note, however, that the tank and rear seat cowl pin striping is original.
You can still see, in places, the original brush strokes from 37 years ago.
Here is the left side of the tank. Largely immaculate, except for a small indentation towards the back (upper right in photo)
The indentation is very shallow (just under 0.5 mm deep).
Barely enough to feel with a finger.
 

 
Below is the right side of the tank.
The only significant imperfection is a small scratch across the pin stripe (faintly visible about 2/3's of the way back from the
front of the tank on the top stripe.
 

 
The photo below shows the raw part of the tank where the stock seat rubbed against it
(now painted over with a slightly lighter shade of brown)
(completely hidden from view with the stock seat on).
 

 
Photo below shows the right side of the seat cowl, where a couple of scratches are visible
(covered with two strokes of ill-matching paint)
 

 
Photo above also shows a good view of one of the racks I made for the Givi panniers (not included).
Galvanized carriage bolts conveniently provide the perfect size for the Givi attachment slots and locking slot.
 
Photo below shows the only other significant flaw in the tank (chip along lower right seam).
 

 
The photo above also shows some of the non-original pin-striping (fender and fairing),
which I did with a Beugler kit.
The Parabellum fairing and the Airtech fairing each have their own headlight (the former is 1" larger in diameter).
(Sorry. Had to drill some holes in the original headlight bracket...visible above).
 

 
Below are a couple of shots of the Airtech fairing.
Two or three small paint chips are visible.
 

 

 
The Airtech fairing has 4 attachment pts, plus the headlight.
The Parabellum has 6 attachment points, plus the headlight.
Both are extremely rigidly attached to the bike.
Absolutely no problems with cross-wind or vibration on the highway.
 
Here's the front fender. Some small paint chips and an abrasion point (lower left) are visible.