Any half-decent GUI should cover everything shown in this cheatsheet. You’d have to do quite some voodoo witchcraft to need CLI these days. It’s actually the reverse sometimes, when my terminal bretheren complain that I do too much witchcraft when I’m just tidying stuff up with a GUI.
Bruh. All that is like pennies, comparatively speaking.
Also, pretty sure you’ve described is like every other property on sale right now, so no need for calculations - just check the local zillow or something.