They are some kind of moda own brand cranks, barelli. Omnium have the cup type bottom bracket whereas at the mo the moda has those like 'exposed ' type. Check me out dropping the knowledge :(
Exposed? = square taper :)
I think I can bring the tools to do it, the only one depends on what the original bottom bracket needs, but I guess PS should be able to lend that if ness
What cranks do you have on there at the moment?