Oh Dave, you're going to regret this!
A 360 GLT injection 3dr version is very rare,
also in Holland. Were the half-leather seats fitted
from the factory? If so, I have never seen them in
Holland, only full leather upholstery.
Dents from supermarket trollies can be removed
by a special technique called "Mimodashi", i.e. striking
the dents out with a special tool, without repainting.
New owner is a lucky man.
They are the centre panels on the front seats done in leather by an upholstery company when the car was only a few months old. Bilbo has the receipt for it (Along with the car of course)