Amazon informed me that there was a newer model and it's only slightly more money (I'm going to be cheap and buy a used one). These are the telephoto lens that I found. Lens 1, Lens 2. Is the big one overkill? lol
I think I will build a motorized barn door mount as suggested, again, to save money. I didn't realize that a equatorial mount isn't exactly necessary.
So, to wrap things up, one of those cameras, one of those lens, and a mount is all I need to take the badass pictures on this sub? Obviously, it will take a bit to learn the techniques and everything, but this is a completely new thing to me (never had a camera besides the one on my phones), so I look forward to learning everything.
With your help, along with /u/wattevah, I think I have everything I need to know:
Build my own motorized barn door mount
If I decide to upgrade, I upgrade to a better mount, a good telescope, and a better camera.
If I have it all correct at this point, I think I'm going to order the things tonight. Thank you guys so, so much :D