I'm working on a Philips 170B1 17" LCD monitor with a bad back light
inverter. The inverter has 2 transformers (one for each tube). One
of the transformers is arcing internally. What are my chances of
finding either the transformer, or entire board for a reasonable
price?

The board has this printed on it:

T50I016.00
0108018-40

AMBIT REV:4
T50I016.00

The transformer has this printed on it:

22.0316.39 0108
Andy Cuffe