I have an AF2 file placing SKOC in the right place for FS9 (I believe AF2s dont work in FSX), together with appropriate excludes, windsocks, and beacon (no tower or other buildings yet). The quarry is still there, but is now empty (perhaps one add some dozers, trucks, and the odd hut?) - one could remove the quarry entirely by deleting the appropriate .bgl file, but several other airports would then need to be replaced.
If anyone wants them, please PM me.
And no, I didn't build them until after the Auster Husky had merrily nipped in and out of SKOC! ;D