I made some construction choices at the start of my Fallout Shelter than I'm now unhappy with. Can I send 25 (the maximum) dwellers out to the wasteland and rebuild my shelter and have them come back to repopulate it?

I made some construction choices at the start of my Fallout Shelter that I'm now unhappy with. Can I send 25 (the maximum) dwellers out to the wasteland and rebuild my shelter and have them come back to repopulate it?

I have maxed out my cash so I could make an amazing vault now...