I've seen her live multiple times and love the way she uses the dark energy in her live performances and would be keen to own one myself for similar purposes but obviously the MK1 AND MK2/MK3 are completely different beasts so I'd be keen to know which one she uses?
Like already has been pointed out, it’s not really a good idea to buy a piece of gear because someone else has used it in a way that you’ve enjoyed before. Because basically then you’d have to get all the rest of her equipment too.
I used to have the MK2, it was okay. If I heard one now and was told to distinguish whether it’s the 1 or the 2, I doubt that I could do it.
If you get a satisfactory answer to your question, by all means get one — there’s nothing wrong with drawing inspiration from more senior artists. But it most likely will not make you sound her. Also the Dark Energy (at least by itself) is pretty much a one trick pony.