I didn't think they sold a rear spoiler with Coopers, but apparently one was offered as part of the aero kit. According to RealOEM, it's the same as the first gen S spoiler.
I may be wrong, but I remember a 1st Gen Justa spoiler that was a bit smaller and flatter than the S spoiler. I say that because I sold my R53 spoller to an R50 owner to replace his original one because he wanted a larger spoiler when I installed a Carbon Fiber JCW wing on my R53.
I think the part number for the Justa spoiler is 51-62-7-117-730. I believe this is the smaller flatter version of the below item found on an S. RealOEM shows the part number for the S spoiler to be 51-00-7-068-369.
It is like a shorter flatter version of the gen 1 aero spoiler, here is a side pic on my old r50, it basically gives the trailing edge a angle instead of a rounded slope down, i think r50s look much better with it it does make changing the third brake light a royal PITA tho
If you cant find a used one, we can get a NEW primed unit from Germany. Here is a link to the part on our site: MINI Parts - Just throwing out options.
Thanks. I know I can get a new one lots of places, just don't want to spend 250 bucks to do it. I'll go without it at that price. Cheers Mr. Jim