Mata Hari, along w. 8 Ball Deluxe, are my favorite classic Ballys.
I was able to pick up a nice Mata Hari for cheap about 2 years ago. It had all new pinscore displays, ALL new Alltek boards. Even though my playfield cleaned up nicely, I got lucky and found a new CPR playfield. When I finally get around to doing the swap, I plan on re-doing the cabinet using pimballpimp's stencils.
My backglass has a 5 inch scratch. Wish I could mind a nicer one.
I agree, Mata Hari deserves a club.