You may want to check out this thread. It’s still pretty active and has a lot of good info about building your own machine. I’m happy to answer any questions you have. It might be best for you to post them on this thread as others might be more likely to chime in.
I agree with this. I think the biggest thing is getting started is definitely easier on the cloud than building your own machine and can be much cheaper if you’re unsure how much time you will actually be spending training models, but if you’re in this for the long hall and plan utilize a machine regularly then building your own machine will likely be significantly less expensive. It also provides an opportunity to learn how to set up and maintain everything yourself.