The 4g cars are completely different in every way except that the engine and trans are still on the right side so at least the engine/trans will work. However you will need custom mounts and a different adapter harness for your 1g engine harness. If you're not planning on making a ton of power you can source a 1.8 F5M22 trans from a 93-96 csm and it will bolt to the 4G63 if you use a smaller na flywheel/clutch combo. I believe you can use a 2g dsm t-belt mount along with the stock mounts from the 1.8 trans and it will all bolt right in.
If you want to use a 1g dsm transmission you will have to make custom mounts and roll stops for the front, rear and top transmission mounts. A 2g dsm trans will bolt in but then you have to source axles from a 92.5-94 fwd turbo dsm since they have the larger inner axle stubs.
Hope this helps! Also if you are planning to do a manual swap I have a rare set of LS hydraulic pedals laying around should you need them.