Powering an AC distribution center/panel from two sources

[TimeOutside]

I have a small camper. I'd like the option to power the distribution center/panel from either shore power or by the AC output from a Jackery solar generator.

I'm thinking to have a two-position changeover switch with one input and two outputs. Input would be from shore power as it comes into the camper. One output would direct power to the distribution panel. The other output would direct power to the Jackery (for charging it, if/when needed).

Then I'd have a second two-position changeover switch right after the first having two inputs and one output. One position would take power from the first switch (shore power) and direct it to the distribution panel. The other position would take power from the Jackery and direct it to the distribution panel.

If this would work, I will need assistance on which changeover switch(es) to buy and exactly how to wire them.

Here is a drawing I made illustrating my thoughts. Of course, I'm certainly open to better ideas.

Thanks in advance,
Andrew