How much does it cost to built one of these microscopes? I still think that most nanoscale microscopes,SEM,TEM,etc are unaffordable to the hobbyist or garage w

How much does it cost to built one of these microscopes? I still think that most nanoscale microscopes,SEM,TEM,etc are unaffordable to the hobbyist or garage workshop of scientists.....which is just as important it the equidity in science.