Have you considered having them share a space? I have two boys who are 20 months apart and they have always shared a room. Because they were so close in age, I did purchase a second crib, so I didn't have to bump one out of the crib into a bed - that did help. Have you considered buying a second (used) crib? Or, if the baby is still little, she could sleep in a bassinet for a month or two yet... that might make the transition easier if she didn't feel like she was losing her room and her crib all at the same time.
My boys really love sharing a room. They are currently 3 1/2 and 5 and they love bedtime with books and talking after lights out. I think that it actually helped #2 learn about the whole bedtime routine since he was usually in his crib as the older boy got into his bed and lights out... he just would lay down and go to sleep.
Consider it - it might make your life easier... she really is still a baby at just turning 2. Maybe pushing her out before she is ready is not the best option...
Just my thoughts.
Congratulations on your new baby!