Newbie Alert

This is my first arcade game (one of two) and my first restoration!
Anyhow...
I'm restoring a Centipede upright in my spare time (a labor of love) and I need monitor help badly!
The monitor in the Centipede (Atari 1980) is a 19 inch Wells Gardner, model 19K4605 (serial wg 945002). It is mounted vertically. Unfortunately, the neck board was smashed and has some missing pieces off of the remaining PCB. It is also missing the interface card. Some of the shims on the tube are broken. The horizontal/vertical card and main power board are intact. The tube looks okay, with some burn-in.
I need help deciding what to do. Questions:
Should I go new? An arcade distributer quoted me a $300 price for a new monitor that "would work," but that seems high considering I could go to Best Buy and buy a new 19 inch TV for $100. Does anyone have some links to some cheaper arcade monitors, or is this price fair?
I've seen some Wells Gardner neck boards, power boards, etc. loose on E-bay. Should I buy one of these and try to rehab the abused original Centipede monitor? I'm no TV repairman.
Is there a handy guide for hooking one of these up to a Centipede?
I have a VGA camera if pictures are required. I was directed here from this page:
http://www.oscarcontrols.com/centipede/index.shtmlThe page mentioned Ken Layton, and I found him on this board.
Thanks!