I know Trevj is gonna poke in here to, and he will have some worthwhile info.
Yeah, he is...
I would suggest, since you are in Regina, contacting the local Model Engineering/Live steam club there. I'll try and dig up some contact info.
The Estevan Model Engineering Show is an annual event, normally the weekend after Thanksgiving, but cancelled this year due to covid crap, and is well worth the trip. Kelly, the guy that runs it, can be reached at
emes@sasktel.net, and like as not will have contacts that would have a suitable lathe at a reasonable price near you, as well as having direct contact info for the Regina crew, if their club is still active, or a few of the Regina guys that are willing to help you out.
The Black Hills Model Engineering Show is another worth seeing that is close.
The shows are great places to meet folks that are already using their machines, as well as there is usually a pretty good amount of stuff available for sale. And you can talk to like minded folks about what problems they may have encountered, and how they solved them... Networking.
There is a tool dealer that is worth talking to, he advertises on Practical Machinist sometimes, Bob Yaworski, his username is bob, with his location in Regina, too. May be well worth touching base with by email. He was importing better than average Chinese lathes and mills, and selling them for lower than average prices. He also deals or dealt, in some used stuff.
I would suggest skipping the bottom rung of the ladder, and staying clear of the 7xwhatever mini-lathes, if you have to buy new, and start somewhere around the 10x20 sort of size. All the info about sprucing up and working over a Chinese lathe, applies to these too, in that they need a good cleaning and some careful stoning to remove sharp edges, but there is a lot more capability in that size for not a lot more money.
It is important to note, that the online guys who tout "American Iron is BEST!", usually live in parts of the States that had huge light industry and lots of not badly worn machines to choose from. It's pretty easy to end up with a worn, or badly broken, brand name lathe, that becomes more work than fun. Condition is better than brand name.
In nearly 30 years of hobby metalworking, I have never had to try to find a part for any of my lathes. That should give you some idea how important getting parts from the maker is.
As if you were like to get any from the Chinese makers...
As far as looking at used lathes. Usually, if it looks good, it probably is good. Ways look consistent from end to end, paintwork in decent shape, clean, etc. It's been pretty rare that first impressions are not accurate as far as the way the machine has been used, abused, or cared for.
Start watching the local buy and sells, craigslist, Kijiji, Facebook Market, etc., and make some local contacts, they will be able to help you out both in looking over a potential buy and in helping you get up and running, as the learning curve can feel like a brick wall, if you are trying to learn by yourself.
Books! Get a used copy of Technology of Machine Tools, by Krar. Senior High School/College level textbook for metal working with machine tools. Shows HOW to do stuff. Machinery's Handbook, shop for used. It is a compiled list of stuff that you can look up online now, from before the internet, eh. Buy a used copy if you gotta have it. The info doesn't change much and the used copies are cheap.
www.lathes.co.uk, has a huge library of machine tool info sorted by manufacturer. If you see a machine tool listed for sale, it's probably the best place to look up the info if you don't already know what that particular make is about, and whether it might suit your needs.
There's a few of my many random thoughts on lathes.
My experience has been that once you have one, and get involved with a couple folks that are also afflicted, they will start appearing all over the place. If you find that the hobby is interesting you, don't be too shy about either grabbing a second lathe, or buying as an upgrade and selling on, the previous one.