lol of course its free
(Thats a nice deal b16a2 for $1000...what are the miles on it?)
If I were you, Id head over to a place like
www.jdmshit.com or
www.jdmhondaparts.com and get the whole setup figured out. It will run you more but its a complete swap. Whatever you do dont tell me that the engine you found is on eGay!
Having the swap done will run you into the thousand $ range, at least thats what one place by my house said it would cost me if they did it.