plastic (why would a German company import Chinese and ruin the German good reputation for workmanship?)
yes well, bit of a con as you would think German made would be ok but its actually nasty Chinese (as opposed to good chinese)
It only has a spherical mirror and I'm suggesting they get a parabolic
Id suggest binning it , doesnt sound like hes interested and it isnt worth much/anything anyway. It wont be any better with a new mirror as all the other bits are near rubbish, overall cost would be more than a good second hand 6" dob (which might actually work)

Roger