If you go back to edit your post you'd be able to add the word "manual" to the heading, just for clarity. Although about two thirds of the ones that came to the UK were manual anyway.
Given the mental block most UK car buyers have with 6 figure mileages I'd be inclined to look for much lower mileage (below 75K maybe) or just over 100K to avoid taking a hit on value.
Given that used CSL wheels seem to sell for £3K or so I assume you'd like CSL Reps. Just be sure what you are getting though. My current Z4 had 19" CSL Reps with the same widths and offsets as OE ones, but some year back I had a set of 18" Reps that were 8J all round.
Anyway good luck finding the right Coupe - they're great cars.
Iv been looking for quite some time just people be wanting stupid money and then when the right one pops up its sold within the same day it gets posted so im too late