Installing a Perkins Engine Into a RD90 Read Screen.

What do I need(auxiliary gear pump, drive gear shaft)to install a Perkins C4.4 1204E-E44TA engine into a Read Screen RD-90 serial# 568388? The Perkins engine is a Tier 4 Interim engine. The engine type is 3658/2200. This means that it is 94BHP@2200RPM. Also, are the necessary components Perkins parts?

Installing a Perkins Engine Into a RD90 Read Screen.