hey i was also thinking about doing this but not with oem s2000 one.
I had a look on ebay when i was seroiusly thinking about it and i could get similar if not better looking antenna, (still short stubby plastic) for like 15-25 bucks.
What would be the main difference besides quaility? does the s2000 antenna have a relay and amplfier for the radio signal?

thanks, hope to see some pictures soon too.