Off grid system / 2 x 48v 5000w Multiplus inverter / Ac coupled to a 8kva Sungrow grid tied inverter

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Hi All,
Im sure this has been asked and covered before but Im struggling to find clear advice on the subject.

Story goes like this
Off grid system / 2 x 48v 5000w Multiplus inverter / Ac coupled to a 8kva Sungrow grid tied inverter

I currently have a Sungrow 8kva grid tied system running the house.
I also have a Victron Multiplus system running my shed (completely off grid) (2 x 48v 5000w Mulitplus) ( 144kw of lead batteries @ 48v)

In the perfect world I’d like to stick the finger up to the power company and go completely off grid.

Now I understand that I can couple my off grid Victron system to my Sungrow (currently grid tied) system and disconnect it from the grid.

My questions are
1 is there any recommended reading on this subject.
2 Can I damage the Multiplus if the sungrow back feeds into the system.
3 Does anyone have a wiring setup for this type of system

PS
My Sparkie thinks I’m mad, He calls me a cross between Einstein and Sheldon (big bang theory)
LOL

Thanks in advance

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I would highly suggest that you consult your Victron dealer or get an installer to assist you. This is because you can do this wrong. There is an assistant to configure on the multiplus And the inventor has to support frequency, shielding to scale back into the multiplus So stop charging when it is full. Are use gritty inverted on the output of my multiplus But you have to figure out assistant for it. There is also like a bunch of things and change your system to safety regulations.