Dude. Not to apple polish the Mayor too much,
You're another one of these guys that has the American work ethic. A flood like that is traumatizing to a whole population of people. You not only help others, but it's like you're rebuilding and doing what ya gotta do without a complaint or sign of fatigue or defeat. And you're documenting it, historic significance, man.
I think there's a time in recent history when your house would have been way more likely to sell, you know when the housing bubble was expanding and people were flipping houses.. Then you might have had an easy decision to fix the house up real presentable because it would have been worth the risk and in demand.
Now the economic mood in this country is uhhhh,,,You know how I feel about politics.
You can repair, fabricate and install whatever you want. Thats a big happy plus

I can't imagine being somebody that is helpless in home repair. Those poor souls have to be at the mercy of others. I couldn't tell you what the most advantageous thing to do is. Let it sit or sell as is, or good contractor grade fix-up, or what.
I looked at a house once after the last Owego flood, I think it was in Appalachin. Right on the river bank, nice porch view of the Susquehanna. The house had been restored, they took the furnace and hot water heater and breaker box up to the first floor. Nice contemporary bathroom, the whole house was repaired well. But there was zero privacy with the other houses right next to it, and the house was over-restored for the neighborhood, I thought. Riverfront property though, who knows somebody might have really wanted that place.
Keep up the good work!