WTT: FSA OS-99 100mm stem for 90mm

i have one of these in a 100mm length, +/- 6 degrees, comes with titanium bolts

http://images.competitivecyclist.com/images/products/fsa/2010/8189_i_1.jpg

and i’d like to trade it for a 90. also willing to trade for a white stem of the same size (ritchey WCS/profile?). as per competitive cyclist:

FSA manufacturers carbon fiber stems, but perhaps their very best stem (though not their most exotic or their most expensive) is their OS-99 stem. The OS-99 is the lightest stem in the FSA family, and – believe it or not – it’s made from 7050 aluminum alloy. The 90mm stem weighs a paltry 103g. Don’t let the extreme lightness of the OS-99 give you concerns about durability. FSA manufactures it using a proprietary 3D forging technique that uses slow forging speeds and extremely high pressures to eliminate surface deformation. They carefully control the heat treatment process to ensure ideal crystal growth. The heat treatment is so critical to the finished product, in fact, that FSA documents and inspects every heat treatment session to ensure quality. It might weigh 103g, but it has the toughness of a heavyweight.