question

Im quite confused by your system, i think it is quite inefficient to buy(Solar Panels + Batteries + Inverter) just to avoid running some wiring.

You are going to spend a large sum of money doing this and it is a waste if it can be avoided by running a few cables.

If your monitors plug into a normal wall outlet that means they use AC Power, solar pannels produce DC power but it is unusable as it fluctuates, hence a charge controller is needed to charge the batteries. This power in your batteries now needs to be inverted into AC power for your monitors (Or a DC converter will be required to provide your monitor with its required voltage)

At Minimum you will need a system like this and remember that your panel voltage needs to be higher than battery voltage in order to charge.

I am not familiar with your solar brands so i will use some i am familiar with for this example system. I am quoting in rands but you can convert to your currency.

1) Pannels- Lets go with one of these R1840.00 (Perhaps 2 if you want to go with 24 volt batteries)

2)MPPT Charger- R3550.00 (Can go with a 20A charger if you use a 24V battery)

3)Batteries - Lets go with GEL because i think lithium is overkill for this build. You need these even if you do not want the screens to work at night. You could get away with a smaller battery though,

4) Inverter- Cant imagine your screens use that much power so lets go with the smallest one i can find for sale

Remember the cost of wiring these components together, labor and maintenance. Are you sure it is not just worth connecting to the grid?

Their are some DIY solar kits available, i would not recommend these at all but for the sake of completeness i will attach one system of this type below.

EcoFlow DELTA + 1x 110W Solar Panel

Super simple systems but they are not that flexible. Still very expensive.