I highly recommend a 75. I'm running a 55 and the narrow width makes cleaning near the rocks difficult because the scape gets closer to the glass. It also wobbles more than my 75 because of it's narrow width.Yes! I would want a tank big enough for a tang of some sort, because I love them so much!
Would probably look into getting a 55g or a 75g. I definitely don’t want to go bigger than I could handle.
Edit: I would also want it to be drilled, so I can put a sump in. Definitely want a sump.