I have the opportunity to get a couple of beaten profoto D4 for $50 each, both of which have a working flashtubes !
problem is, the first has a broken handle/cracked external shell
the second has a broken fan

so i was thinking to swap the good flash with working fan but broken shell, into the one with good shell

is it dangerous operation? is it possible? are there any high voltage risk when the flash is not connected to the generator?