To be able to build the optical bench, I need :

- A slit ( http://www.babytronix.com/Slit-Mask.pdf ? )

- A software to be able to design the optical bench ( lensforge ? )

- Mechanical part to enclose the optical bench ( easy to do with a laser cutter and some plexiglas )

- a 40mmx10mm TEC to cool the CCD

- Mirror

- Gratings