It should work, yes. I personally think that's kinda expensive but whatever. I put mine in the holes on the main gear. You might need some heat. They are on tight and tend to pop off pretty violently.
I also suppose you may not need to remove the flywheel if you are just splitting the case to examine the chain.
The case gasket should be .5mm thick. You can run it without a gasket and use some kind of sealant instead, but the crankshaft and other shit can bind so I don't recommend it.