It's really not as hard as you make it out to be. Most rooms can be made to be good enough with a few additions; blanket hung in the right place for example. A nice mic helps but a basic condenser mic will do a great job. I've achieve good results with very affordable mics.
Then, it's a case of moving yourself around in front of the mic. Move one way and you might get more bass; move the other way and you bring out more of the pick against the strings.
Sure, if you're going for high end solo acoustic stuff you need to up your game but otherwise it really is easy.
i did this a few years back at home with just a Rode NT1A. I originally thought it was before I got the Rode and was two C1000 cheapo mics but I just noticed the Rode in on of the clips.