My properties are in Delaware County, PA and mostly 3 bedrooms and 1,152 sqft. I would definitely accept a $3,000 quote to paint my whole interior, especially if that included the cost of materials. I don't know if that is a good price in your area.
I think you should dig deeper into the cause of the chipped paint on the ceilings. It looks like one room is the dining room and the other may be a bedroom.
If one of those rooms is a bedroom, you very likely have a roof leak. Check the roof.
The dining room cracks may also be coming from the same roof leak if the bedroom is over the dining room. You may have water traveling down the bedroom wall, then across the dining room ceiling to the lowest spot which happens to be there. You might see some stains or loose paint on a bedroom wall if that is the case.
It looks like there is a spot fix needed in the pic with the 2 holes in the wall. Patch, sand, prime and paint the holes and paint to match the wall. You can get a color match for the paint there and maybe get away with painting only that small wall.
It's hard to tell from the pics if there is a need for whole house painting. There are a few spots like below the basement window where you might want to paint just that wall or spot paint a scrape.