I could send you some stuff from my earlier mITX-projects. I've got a 450W SFX-PSU from a Silverstone Sugo 05 and a Prolimatech Samuel 17 lying around, if you're interested. Ontop I offer you some two very silent 120mm Scythe S-Flex 800RPM for cooling the whole thing.
All stuff in very good condition ofc and barely used.
For the motherboard... I've got a perfectly working Gigabyte H55N-USB3 with an i5-760 aswell, but you'd need a small GPU, as the i5-760 doesn't sport integrated graphics. Some 2 or 4GB RAM I should find aswell.
OH... and it's the wrong forum
EDIT: What the heck... I'd even throw you a perfectly fine and allmost unused LianLi Q08-B case with all the above, so you'd basically only need a small GPU and a HDD.