Bring that baby home Missy!!! Ask the vet for a mild tranquilizer just in case. Tell the airlines you want to witness them putting Boomer in the plane. Like Michelle said:

I say bring that baby home Missy. He loves you all so much and you all love him. I think the flight may be a lot less stressful than the rehoming and if you have people that want to help then that's all the more reason.