Cif ,plastic schuursponsje, hoop werk, en afvegen met een schone, ietwat vochtige doek. Theedoek of zo. Alleen de diepe krassen gaan er niet mee weg. Maar die vallen wel minder op dan. Weer als nieuw.
or
Cif, plastic scourer, lot of work, and then wipe with a soft slightly wet towel. this doesn't remove the deep scratches but at least they don't show so much.
As new again.
And if it is really to much work because it is in to bad shape, i do have a body left over, never used, just stood outside a few months,
better mail me about that.
I live about 28 km from your place.
you need a crankshaft poulliepuller though.
greetz
Frank