The engine compartment looks like it could support the stated 55K original kilometers. If this car is the rear deal and has been stored for 25 years there is LOADS of overdue maintenance required. This would not be a project for the faint of heart...or slim wallets. The seller does not disclose anything about the power train even remotely working so you would have to brace for the worst.
Porsche did some psychedelic combinations in the 70's but I'm pretty sure they never equipped red cars with brown interiors. Confucius says this car left the factory some other shade than red. Signs of a re-paint are everywhere. Mocha or Copper brown was most likely the original finish specified. Pasha interiors in good condition are rare and desirable, the interior alone might justify the asking price for someone looking for good parts.
Recent market activity for early OB models in good condition is skyrocketing. No doubt, this car would need a full restoration to pull in high numbers. If the mileage claim turned out to be legitimate them most of the hard parts should be reusable. If you have the skill and tools to take on a project like this there is plenty of upside on the outcome. Deal or scam...let's hear from the readers!