Hey, really cool project.
The B30 is one massive engine. I was always under the imprerssion that the B30 came with an all steel drive gear for the cam, i guess not then. Orthen someone has changed the steel gear to B20 gear for some reason.
I like that you have tons of pictures, and i like the attention to detail. What transmisison are you going to bolt behind that beast?
The B30 has a fibre gear standard. I'm told the steel gear on mine is a Volvo Penta part.
I am using the standard Volvo M410. There is a 600bhp 164 with this box still fitted, so I think it will be fine in mine!