I'd leave the head gasket well alone. The same head gasket will fit on all 4.0L engines from '87-'06.
Keep in mind that your '95 head came from a High Output 4.0L engine whereas your '90 head is from a non-HO Renix 4.0L engine, so the intake and exhaust ports are in different locations. If you're going to use the '95 head, you'll also need the intake and exhaust manifolds from a '91-'99 HO 4.0L Jeep (except for WJ).
Then you'll find out that your '90 injector rail and throttle body won't fit on the HO intake manifold so you'll need more HO bits like the injector rail, fuel lines, and throttle body (TB). Your Renix TPS won't fit on the HO TB unless you modify it or make an adapter, so the list goes on.