I emailed Michael from 02bmw.de and he told me that he will probably have one soon. Yes it's true that linwar does not have the right side, I provided the link mainly for price comparison.
Are these still up for sale? Btw I found them new http://www.linwar.com/e10_151_13105L_00.html and they cost 390 pounds each for the sides, and 145 for the center. Also on bmw02.de they are about 300 euros. IMHO $1000 is a bit overpriced