I've been thinking for a very long period about the sell and lease back. I've seen this going on all around the world. A good example of this primary way is Jet Airways and Air India. You sell the aircraft to the lessor and then you lease it. This will also secure your aircraft without finding a new aircraft as it will still make use of the same aircraft but instead chaning owner and you lease them instead.
By the way, there should be choices as well, like offers. One offer for $140m with 650k lease per month and alot more offers in similar.
The numbers given are faked. (Example).