I'm 100% certain you can do it yourself.

We get Chinese solar panels here. $175 and produces 550 watt.

We then get Chinese MPTT inverters, always 2 if you run your fridge on it lol. $350 ish for one. The 5kW model. It's all one and the same.

You need a minimum of 3 panels.

So for less than $1000 you have 1.5 kWh with no storage.

Connecting the panels requires some care to ensure you stay within the parameters all GPTs know. Two pictures is all it takes. The spec label of your panel and that of your inverter.

I can't stress enough how easy it is.

The output of your inverter is 1 phase power. You can route that anywhere in your house safely since houses have.. circuits. So once the circuited is moved to the inverters grid, its seperated.. at the circuit breaker.

The scariest part was driving a screw through my roof.