There are two separate but related issues with driving an older car.
One is that they're old so stuff is going to break and wear out just from being old.
The other is that despite our tendency to idealize the past modern cars are just plain better than older ones. They're safer, more powerful, handle better, are more reliable and they produce noticeably fewer emissions (ie, they smell better).
Old cars smell. They smell better if they're in good shape but the exhaust is more noticeable and the lack of evaporative recovery systems means you'll sometimes smell gas and the lack of a PCV system means that you'll sometimes smell oil The road draft tube will also leave oil spots on the ground.
The speed limit in Upstate NY is relatively low so highway speeds are less of an issue than they would be out in the western part of the country but I don't think that car is going to be particularly happy running up the Northway at 70. I suspect that 60 is going to be at the upper end of where it's happy. I could be wrong about that. I've never driven one of those and that's around the time that cars were getting more comfortable with higher speeds.
The manual steering is a concern. Yes you can learn to creep the car ahead whenever you're turning the wheel (A habit that I have from having owned a lot of cars with manual steering) but it's still likely to require significant effort.
Carburetors require a technique to start cold, particularly if the car has a manual choke. Being in a good state of tune helps but you're still going to have learn what this particular car wants.
It won't stop as well as a modern car.
It won't corner as well as a modern car.
Crashing will hurt more than it would in a modern car.
All of those issues can me overcome by updating the car but you'll loose some of the charm in the process.
Personally, I love older cars and I'm happy to just putter around in them letting them do what they do well and avoiding trying to do the things that they do badly. Since you're in Upstate NY, I'm assuming that this won't be your only vehicle. I think you should get it and just enjoy it as it is. Only by spending time with it will you be able to tell what parts of it you like and what parts of it you find annoying. Then you can either modify it to solve the issues or sell it and get something better suited to your desires.