Barracuda Formula S Experts Opinions Needed

I respect the opinions of several of the members on this site and I need to come up with a fair offer for this car. I know several own these 340/383 cars. I have located a 68 Formula S 340 4 speed notch for sale. I own the automatic version and this 4 speed has me wanting to make a move on it. Here is the fender tag brake down.

CAR: Plymouth Barracuda 2 Door Hardtop
ENGINE: 340cid 4-bbl HP V8
TRANSMISSION: 4-Speed Manual Floor Shift
TIRES: E70x14 Red Sidewall, steel belted
MODEL YEAR: 1968
BUILD DATE: July 16.
AXLE: 3.23 Rear Axle Ratio, Sure Grip
INTERIOR: Deluxe Trim Grade, Vinyl Bucket Seats. Red Interior.
PAINT: Red (Dodge), Matador Red (Plymouth), Scorch Red (Chrysler), Flame (Imperial).
OTHER: Burgundy Metallic Upper Door Frame Color. White Horizontal Sport Stripe.
MOLDINGS:
25: Drip Rail Mouldings
78: Wheel Lip Mouldings
ABC OPTIONS:
F7: Barracuda Formula S Package
R1: AM Radio
S1: Air Conditioning
T1: Unknown Option
X1: Tinted Glass (all)
abc OPTIONS:
a6: Console
b4: Bucket Seats

THE GOOD: The body and paint are good with no issues that I could tell with just a walk around. The motor and trans numbers match with the VIN. The motor sounded good and has been rebuilt. new tti exhaust and gas tank.

THE NOT AS GOOD: There is not a broadcast sheet with the car. I believe the dash bezel and dash pad have been replaced from another car. The speedometer does not look correct for a 1968 since the numbers are vertical and not tilted. Disc brakes were added from a 73 Dart and a bracket was added to frame under the left front tire. The door strikers looked to have been repaired on both doors. The bright work/chrome are showing wear. The motor was painted orange instead of red. The radiator number shows for a non a/c car. This would be a driver quality car probably a #3 condition.

Here are some pics. Im thinking price somewhere in the teens but need some honest opinions on this one...THANKS