hi guys
i have a b16a that i finished rebuilding the bottom end on (started with block only). so now i am getting into a little confusion on heads and obd issues to use. i am going to be swapping this into a 93 del sol s (obd1). i would preffer to just buy a head complete with intake manifold and throtle body with all sensors attached and no assembly required. i dont feel like ordering every piece seperate for the head like i did the bottom end.
i am having problems finding complete obd1 head with manifold and sensors, so before i order a bare head and intake i have a couple of questions for posable alternatives.

what problems would i have to overcome if i would use an obd0 or obd2 head & components?

would i have any problems using a b18c head obd1 or 2 and what problems might i have.

what would the best ecu be to use for b16a and b18c in my situation.