Genset on MP2 AC-in, off-grid

DIY
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System: MP2-5000/48, 6xUS5000, two 250/60s with 8.5KW array, planned Fronius PV array with 3.5KW AC coupled.

This post from the archive hits the nail on the head: Which generators are fully compatible? - VictronEnergy

The suggestion there is to move the genset away from the AC-In, and use a separate AC charger, e.g. another Multi on an MK3 interface connected to the GX.

I prefer to move the gen to charging the batteries only, as the freq and voltage fluctuations on the AC side are causing problems, which will likely get worse, when I setup the AC coupling to the 2nd array.

What I cannot get my head around is how to control that charger then, other than manually or through some external control (e.g. HA). Is there a smoother way to integrate it with the GX. I understand that this will not work with DVCC, but do I protect my BMS here from that charger?

The situation I could foresee is poor weather, then a sudden break in the clouds and solar as well as genset are charging. Another factor is that even in overcast conditions, I want to use as much PV as I can get into the batteries in addition to the genset during daytime.

I don’t quite understand how this would work with the suggested Multi on an MK3 connection to the GX.

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Not a lot of progress on this here. In the meantime I have managed to source a suitable charger, though not the Skylla which is really not suitable here. Too expensive and not enough features, e.g. GenSet control or SOC integration. I wish Victron would offer something here, especially with VE.Bus, so it can be integrated and ideally work with DVCC.