Good on you for considering fostering, good fosterers are always needed. You need to have space to isolate, which you have, and time to spend with them while they are in isolation, and time to keep up with the extra cleaning it creates. You also need to be able to be strong enough to give them the love and care they deserve and be able to let them go to their new homes at the end of it. If you feel you can do this, contact your local rescue