I am installing a new 2020 manufactured home on my land about 40' from a permanent underground 200A service meter-center/meter-main panel (Eaton MBE2040B200BTS). This panel currently only has 2 circuits in it: a 110V 20A utility outdoor GFCI circuit and a 30A 220V RV hookup. Both receptacles are installed on the same post as the panel and two ground rods are installed. The manufactured home comes equipped with a Siemens MB2040B1200G 200A indoor main panel with the neutral and ground busses disconnected. The manufactured home will be installed on a "permanent foundation" consisting of a concrete perimeter wall with a crawlspace.
Here's what I'm thinking: Add an Eaton BRS225 main lug kit to the outdoor meter-main panel and connect 4/0-4/0-2/0-4 Aluminum Mobile Home Feeder Cable(RHH/RHW-2) to the Siemens panel in the manufactured home. I'll use Schedule 80 conduit where the cable is inside the crawlspace and also where it drops from the Eaton Meter-Main panel. The rest of the run will be direct burial without conduit. I'll leave a 6in section of rebar sticking out of the top of the foundation wall and connected to the main horizontal rebar in the footer as a Ufer. I'll use a rebar rated connector to connect to bare #4Cu and run that to the ground bus bar in the Siemens panel.
Questions: Do I need an additional disconnect outside? Will my Ufer be all the grounding I need? Am I on the right track? Thanks!!
EDIT: Here are photos of the breakers in the manufactured home panel.
EDIT2: Here is the main HUD label from under the kitchen sink. (This is the same model house but mine is not built yet) and an electrical info plate outside on the wall.
EDIT3: Here's 2 new photos of the 200A outdoor panel with the 20A and 30A circuits in it.