Wow, that's insane..

Dr Who - Reconditioned to dealer standards is worth $3500 - $4000.

When you add a full cabinet restore - add $1000-$1200 labour and materials plus Next Gen artwork = $1250-$1450.
ColorDMD landed is going to cost $900.
Playfield is the unknown, but you want it to match the cabinet. Add plastics and ramps. It is now adding up very quickly.

If your base was good - $3500 + $2150/$2350 = $5700 Average NOT including playfield work / ramps / plastics etc etc. Add $1000.. Just shy of $6000.

If you wanted a restored cleared playfield.. There's your easy $7,000 Dr Who.

But you should be able to obtain dealer quality for far less. If you set the bar high, be prepared to pay for the work. I do High End Restos every day, and if I was to charge an hourly rate for the work, no one would be willing to pay for it. You have to really love what you do and be honest and realistic with the owner. There's so much "behind the scenes" work done.

You can buy a $4,000 Dr Who - If you look hard enough. Will it even resemble what you are asking for - I highly doubt it.