Thanks guys. I purchased Front, Engine, Transmission, Transfer and Fuel skids from bb. I just needed to break the install into a few different sessions due to time.
My plan is as follows
1. Remove factory parts (minus fuel skid), modify heat shield, install Bud Build crossmember.
2. Install Engine, Trans, Transfer, Front. Replace factory valences
3. Replace factory fuel skid with BB fuel skid,
I didn't want to be driving around without the factory fuel skid on... thus the reason for my question. Sry for any confusion.