Scouring service manuals for designs (poosibly starting with genlock capable devices or maybe timebase correctors) using a potentially compatible part might yield a list of potential donor hardware which might be available relatively cheaply.

I realize that this would be lots of work for a long shot

yourepicfailure wrote on 2024-05-31, 04:34:

Thank you, these are a good start. In theory, there is enough real estate to toss in a small 3.3 reg. I did measure and that the crystal's peak output is 3.3v, so I might be able to get away with that.

its the VCO IN that is more interesting and might be the main problem when substituting this part. Put a scope on that and see if its fluctuating at all, and at what range its operating.

The VCO in pin hovers +/-.2 v around .8v