$30K Too Much For Full Roof Replacement?

I need some opinions here. We are replacing our roof prior to selling this spring and was quoted $30k. Only got one quote and will certainly be getting more. But is $30k too much?

We live in Indiana, have 2,200 SF of living space. We also have a porch with shingles above it (not considered living space obviously). I don't know the exact SF of the shingles above the porch.

In addition, we have a sun room (500 SF with shingles above) however this is not considered living space as there is no central air. Regardless, there are roof shingles above that as well.

Thanks!