Quoted from Tsskinne:
Want to try to use black knight as my learning machine, and perhaps first attempt at a restore, love that it plays, but would really like to at least get that upper playfield looking like maybe a 7 or 8 instead of a 2/3.
This is a pretty complicated machine for your first restore. Especially if you are planning to strip the playfields and restore them too. The split playfield can be a pain to work with. Just something to think about.
That being said, there are reproduction playfield pairs out there. CPR (Classic Playfield Reproductions www.classicplayfields.com) made them a while back and I bet with some time you could find a set for sale. Not too long ago, Kevin at CPR told me he had a few playfield pairs left for sale. They are not perfect and can be had for a very good price. From what I understand, the upper playfield is great but the lower one has some print registration issues. May be worth a shot!