DavecUK Chemex & V60 (drip/percolation) aren’t more “high end” than Clever (immersion), they are a different & quicker brew method, unless you are targeting lower extractions (which is what you mostly get with Clever, unless steeping long).
I almost never use my Chemex, I use V60 most often. You will need a gooseneck pouring kettle, an electric one would be great, don’t worry about temp control.
For small cups (<18g dose) use an 01 (though I have method for making smaller cups with the 02 and a steel can strainer). I prefer to use 2 brewers if making multiple cups as big brews never seem to work out so well.
I don’t know why most people overlook Melitta & Bartleet brewers, paper filters are often easier to find.
Kalita Wave 185 work just as well as all the others mentioned, but storing the basket papers is a bit more faffy, they’re not always easy to get either.
Melitta, Kalita Wave 185 & the Wilfa pour over cone can also be used with a regular kettle (though best to use a small one with 1 cup minimum boil).