1. Is it possible to send you a Canon 350 or 400 to make the modification to an cooles DSLR?

Cooled 350D(=Astro350D) and Cooled 400D ( Astro400D) are discontinued and now we can’t modify 350D, 400D to cooled DSLRs.
Currently 40D, 50D,60D,1100D,600D, 5D MKII are the cameras we can mod.