Hello to all – was wanting to know if I could get some help – starting a project any advice will help..

Currant vehicle 1990 civic d15b 4 spd
Parts collected for swap
d16y8 block with flywheel – d16y7 head & intake – 91 civic si 5 spd trans with new clutch assm – 91 civic ex knuckles complete with rotors and cali’s – 90 integra rear trailing arms complete with uca and lca –

my question is – im sure I need a different ecu – which one ? – when installing the si 5 spd trans is it a plug and play or do I need more items ie shifter cables or linkage ? axles ? is there anything else I should pickup for swap – thanks for any help that might come my way