But if it's the crab boil that makes the smell why not just do without it?
The smell and taste of boil is not the problem, it's the lingering smell several hours later. Or the next day.
FWIW, Ive done an indoor boil and it turned out fine and the smell didn;t linger near as long as I had expected. About the same amount of time my house smells like gumbo after cooking a big pot.