Are there custom cards available yet for this machine?

my wwe le pinball comes with 4 balls, but under the locker it said "install 6 balls"...
4 is right?

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until someone comes up with better ones, I've made these custom cards for wwe le.
My number is 383, what numbers do you guys have?

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Did someone already install a shaker in the wwe?
I always put a shaker and I have a new one here, but I don't know where to attach... ?
I'm confused with the spike system...
Do I still need to use the small board that comes with it, or does it connect directly somewhere?