Folks this may get torched, but I want to speak up in support of codes. You see.. everybody dies. And that means, Your house, on Your land, that You build will likely be someone else's house. Will your estate cover a fire loss, if the inverter you used actually does not have the rated capacity of the label? Why would a insurance company issue a policy on a house when the electrical feed has a bunch of unlisted components. Will you pick up the tab for the college education of the children of a lineman who gets electrocuted, because your autoisolation hardware didn't work properly or worse you didn't have any? I am the current owner of a house that was built in the mid 20's and has been modified quite a few times. Oh look, no continuous header across a picture window! Now it was a gable end wall so did it matter, oh wait this is balloon frame construction, so it mattered at least some. There are certainly code officials who look to much to the letter rather than the spirit of codes, and inspectors who are looking for the little white envelope, but no codes is a bad idea. Look at all those newer houses that did survive hurricane Ida! Seems those new codes actually helped.