I know this is only about 50% g2 topic lol but will gen2 parts fit on a gen1? Not exterior of course but interior like seats etc, and suspension specifically. Brakes too.
The front shocks you can’t use as the G1 integra (AV1) is a torsion bar setup so it has no springs (coils) like the DA integras uses, it’s just a shock in the front of a G1 teg… As for the rears, I’m not entirely sure, you may need to find a set and do some trial and error.
But you should check out g1teg.org for more info about the G1 integras and maybe redpepperracing as well since I know the G1 integras share the same suspension as the 84-87 civics…