I've had this plane for nearly five years, and am happy with its condition
and performance. It is not new to me, and I had an extensive pre-buy/annual
prior to the purchase.

Short of buying something that burns kerosene (which I can't afford) I'm
sticking with it for a while. I expect stuff to break or need replacement
periodically.

It looks like the roll servo is the culprit- it needs a new motor and drive
transistors, along with a new resistor.

The strobe problem is likely the power supply, which will also need
replacement. The whole thing is likely to be around $2500+.