Infrared conversion of the nikon D5100 - DIY

I recently bought a D5100 body that I want to convert to be a Full-spectrum camera. To save costs (around 300 bucks) I decided to do the conversion myself. ( I live in Europe -shipping, customs, etc... +european converters like Makario in Germany cost a fortune.).

So far I found one less-detailed disassembly guide that helps a bit: http://www.ifixit.com/Teardown/Nikon-D5100-Teardown/5271/1

+ lifepixel's DIY guides on the D7000 and D5000 may give some hints.

One key question remained (besides a more detailed disassembly guide wouldn't hurt...): what are the dimensions of the replacement filter?

Has anybody converted/disassembled a D5100 yet?