I don't plan on using it for residential construction.
I believe you will enjoy having a sawmill and get great value from it.
Close to 10 years ago I had 20-30 "blowdown" trees after a large wet sloppy windy snowstorm. It took a lot of tractor work to process all those and roll them down ravines where they would rot and go to waste. I really disliked the waste part of that.
I purchased a Woodland Mills HM-130 sawmill and it is fantastic. To be fair, the manual crank to raise and lower it got old really, really fast. Last year I purchased their electric motor upgrade and it is wonderful. ($600) I don't mind pushing the sawmill down the track at all as that part is quite easy.
Last winter I had close to 100 blowdown trees (epic winter). I enclosed a photo below of a *tiny fraction* of the lumber I made from these trees that would have instead been wasted. I have countless board feet of very desirable cedar in sizes ranching from 1x6 to 1x18. And some oak, and of course plenty of pine.
My neighbor gave me his huge dead sugar pine tree. I made 1x18 pine planks, 8'6" long. It was a *huge* tree and beautiful almost knot free wood. Who has 18" material anywhere?
Suggestions are: decide what to do with waste, and deal with it same day as milling. At first I let my sawmill waste go into a pile, but then the pile grew to reach an almost unmanageable size. I have a sawbuck next to the mill, put the scraps on it, and make 16" pieces using an electric chain saw. I can burn cedar in the fireplace and pine can be burned in an outdoor fire pit.
And pay attention to log storage and log handling. You need a good way to preserve logs until you are ready to mill. At first mine just laid on the ground which is not good. Now some bad logs are used to support the good logs off the ground.
Drying your wood is important, as you already know. The thin stuff you want to use for trim should be pretty good to use in six months, depending on your climate. Six months goes pretty fast. If you are cutting large timbers they will take probably much longer to dry, but I haven't done much of those to share about.
I wound up purchasing a Frostbite grapple for my tractor and it is excellent for handling large logs on the mill. After placing a huge log on the mill, I process one side of the log. Then use the tractor to lift the log, turn 90 degrees, and set it back down. A poor man's hydraulic mill but your back will thank you compared to using peavys. A peavy is fine of course for smaller stuff.
Be sure to post photos of your new sawmill!!!