Answering my own question. Set the bias per the manual. The high setting for PA voltage is a little over 7V. I could go higher but it's a weak signal beacon not VOA.
The OCXO wasn't drifting because it wasn't set right. It was drifting because it wasn't working. I must've toasted the heaters when I tried to adjust it. I'll just take the screws off the lid and replace the transistors <--- OCXO owners inside joke...
73
NE5U
Mike