At a rough guess.....
Genuine with tyres in "as is" condition £750ono
Reps with tyres in "as is" condition £450ono
This is assuming tyres have 5mm or over of tread.
I've been looking at alloys for a while
I'd guess they are 5x100mm too which means all the guys in the bigger metal cannot fit them and you are looking at having to sell on the MKIV/A1/Polo forums.......and most of the guys on there are harder to get to part with their money!