first question..."2 bills" is that 200 (i really hope so, I wouldn't pay any more than that for a d16y7)
Yes the ECU will work, as for the intake... My advice to you is to take off your old intake manifold and t/b from your old motor(if you still have it) and put that on the d16y7 cause the intake manifold from the d16y7 is the biggest GARAGE honda has EVER made...if you do that, then yes...you will be able to keep your intake...if not, you will have to "modify" it...and even still it might be a lil retarded because the t/b from the d16y7 aims upward so the intake might hit your hood...hope i helped...