To do it right - adding a new construction window is the way to go. That means removing the hardiplank., framing, any interior work and trim, reinstalling the siding. Most windows are single hung today. Double hung cost about 40% more.
Otherwise someone has to cut and trim out the hardiplank...
I have a Delonghi. At least 15 years old. Was part of a recall. Since I clean it once a year - including fins - never took it back for the recall.
so far - works fine and no fire. 😃
I go to estate sales often. Family takes what they want and either posts it online or a company does it - especially if there is a house and land. There are such companies all over GA.
Dempsey in Rome, Certified, Evan’s, Gleaton‘s. Many on Google.