Swinks, Blair is spot on. The playfield measures apx 520 mm (52cms) wide excluding edging etc, or 560mm using the machines side borders.
The length is 1160mm (116 cms) long - Aprox.

I measured the length of a few differnet DMD machines, and they are 1260 mm long, or 126 cms long. Only about 10 cms in it, so it is close, and RFM and SW Ep 1, only look as long when Pin2000 playfield is lit up n cabinet turned on. It is hugely decieving just looking at the cabinet. I wouldnt have thought it was so close but it is. Only 10 cm's difference in length.

After reading your post, I just had to measure the length because it was driving me nuts wondering what the difference really was. 
** I wonder what a Pin2000 would look like being stuck in a std pinball body with the monitor being a LCD placed in the backbox with the picture inverted.
Wouldnt be a bad project to do ? try ?