Hi there!
I just found this topic. I'm a big fan of this game. I played it many times back then, and never dreamed to get one at home. And now my dream come true. I made some fine tune with leds and colordmd, and it's awesome!
Here's a video with my machine with all led:

And another one with the colordmd debugging:

Because this coloring wasn't finished good enough, so I made them a video about all the animations. Sadly they did not yet updated the ROM. Only my first complaint was instantly corrected: the buy in ball's display was only black and white, and even sometimes blank...
I hope they will update the rom with the missing coloring. Eg: setup menu is all white(default color), after some animation like extra ball, or striker B.I.G. award it reverts to white...and many flip animations too. In standby the credits are purple, but the free play is all white with the last score.
So that's all for now.

I don't see any topper on the original flyers for this table. Can you show me what you want?
There is a pic from GCS2000 with a custom topper on it. And it looks very good too.
Maybe ask him(?) about it?

Aham, ok. Google image finder shows me this image as the only result. Is it really official? And it only a bunch of flags, maybe that ones what appears in the game's match list.
Sorry, I can't help you with that.

LoserKid3: Some days ago I got the same error with flickering DMD picture in my WCS, and my solution was reconnecting the big ribbon cable from J201 on the security board to the J602 on the Dot Matrix Controller Board.
I debugged the game with powered on state, and fluttered the cables to see if it has any affect on the display. And it did!