Quoted from mof:Bad one???
Why would you arrange for anyone to send you a bad playfield? Isn't the goal to copy perfect or near perfect art???
It depends on the goal. For scanning the artwork, yes you want a perfect one.
For placement and sizing of holes/dimples, you want one that was actually used in a game, so the condition of the artwork doesn't matter. Things can change, might be adjusted, or corrections may have been made between an untouched NOS playfield (that was potentially rejected from the production line for some reason), and one that was actually on the production line and installed in a game. I can think of a couple of instances where dimples were placed on NOS playfields that weren't actually used for anything on production games, or where holes needed to be drilled, but dimples weren't originally there.