There is no situation you can get into where the aircraft is still intact where a recovery in a light aircraft will take more than about 1000 feet if properly executed. Perhaps in some aircraft as much as 2000 feet.
The only way I can imagine anything so extreme is that you are already at VNE pointed straight down and you have to slip the plane a little to slow down before you can pull significant Gs on the airframe. That might take a few seconds. But it also assumes you already have been in an unusual attitude for quite some time and chose not to recover until now.
> There is a reason why even landing at night requires a 90day currency...
With passengers. I don't like to fly at night in a single engine plane and I go months if not years between night (solo) landings. Granted I don't fly to unlighted runways, but in my experience landing at night on a lighted runway is not that harder than landing during the day.
> ... in a light aircraft will take more than about 1000 feet if properly executed. Perhaps in some aircraft as much as 2000 feet.
Many planes have been modified after the spin certification had been done. E.g. on my A36 I have tip tanks, radar, TN engine, anti-ice, ... I have no idea if it will recover from spin as expected or not. And I have no interest in testing it. I can tell you that I lose 500-600 feet in a stall. This gives me a hint that recovery from a spin might be more than 1000 feet.
And yes, in theory properly loaded certified plane can be recovered in most of the cases. But it is not going to help you to know that recovery takes 10k feet if you are at 8k AGL.