Watch for cue lathes on Fleabay.
A cuemaker quits every week.
There are two in my town who just did.
One has a Porper lathe .
The other one has a Jet lathe who is selling it cheap.
The Porper Model B is quite pricey. Over 3 K brand new but it can be mounted with a router to cut V points. It has the taper bar too.
The Jet lathe is much heavier. He has a 6-jaw chuck to go with it. Good enough to install UniLoc pins on. I don't know if the Porper lathe is good enough for UniLoc pin installation. I will have to check the runoff.
My local cueamaker who does a ton of repair ( that's why he's doing cuebuilding full-time) has three metal lathes plus a shaft machine.
There's probably nothing wrong with a Porper lathe. But, it just looks like it won't last as long as a metal lathe. The Porper lathe and the like make cue assembly easier though. A monkey who orders blanks from Prather can make cues and stamp his name on it. Cuemakers lathe make repairs easier. Hell, with a Porper, you can just use a die to thread tenons. Pretty cheesy way of doing it but a ton of cuemakers don't even thread their ferrule tenons or collars.
One advice though. If you want to build or repair cues. Don't even think about it if you haven't watched a GOOD cueamaker/repairman in action for a looong time. If you don't have a machining background, take a machining class or you're gonna build firewood for a long time. Worse, you might lose a finger or two or damage your lathe. I've seen a few chucks get fed with tool holders/bits etc. in my machining class.
Btw, cueamakers don't make money. Just like pool players. If you make cues, make it a hobby and do it for the love of it. Or else, you'd quit too.