I've come across a chassis for a 19inch Wells Gardner K7000 monitor and haven't been able to find a Tube, Yoke and/or purification rings. Can anyone tell me where to go from here?

The way I see it I have to ...
1) Find someone on a forum like this that has spare 19 inch K7000 rings and yoke laying around and then find a local tube to match.
2) Get information from someone here that knows of a TV Brand and model that has a compatible tube ( + Yoke and rings)
3) or some other way that I haven't thought of yet.
The local arcade shop either doesn't have any or is unwilling to look around their parts room.

Any suggestions would be greatly appreciated.