I am not a pro, nor even a amateur at this point. In fact, I have not played a tuba since my last spring HS concert 27 years ago. But I loved it, and have always had it in the back of my mind that I wanted to go back to it. Well, I am not getting any younger, so now is as good a time as any to jump back in. And I am working from home at least until Labor Day, so I can fill commute times and breaks with practice time.
The question is...where to start? I have never owned my own tuba before, and in HS, you just grabbed the one with the least dents in it out of the instrument room and went at it.
My budget is small (need to stay under $2K, the further under the better), and I will need everything from the horn to the mouthpiece to the music/instructional exercises. I looked through this BBS and didn't find a "start here" sticky anywhere, which either means there isn't one, or I suck at the google (strong possibility).
So far I have only started researching the tuba itself. I have decided against plastic. Not that I am fundamentally opposed to that, but there doesn't seem to be any real cost/quality incentive to do so. It appears that Wessex and Mack represent the better quality coming out of China at prices that could get into my range for a new tuba? There is also obviously a wide range of used instruments out there that potentially fit that bill. But not being experienced has me concerned about buying something site unseen from an unknown source.
As far as music and exercise goes, I figure that at a minimum I could pick up a "fundamentals" book like we used in MS/HS and start there. I am completely lost when it comes to the mouthpiece.

My goals are modest. At a minimum, I will play it around the house and enjoy aggravating my teenagers with it. At the most, I would play in the church canata "orchestra", or maybe find a couple old band geeks to oompa along with. Something like a community band or quintet would represent the pinnacle of what I would aspire too.
Any thoughts or opinions specifically about finding a good budget tuba, or about "how to start" in general would be welcomed! For what it is worth, I am in the Atlanta, GA area if anyone is aware of local resources. Again, my ability to google is suspect, but I haven't turned up much.