Thats a good deal but you could probably drop it down to $200 if you tried. I usually do a dollar per gallon as a starting price then add on the accesories so probably like $50 for the stand toom
Good depending on the condition of the tank. Does it hold water and are there any serious scratches? Also make sure the braces are intact and not broken. What do you plan on stocking? Good luck.
The one I bought recently wasnt in great shape, but, i ended up getting it for $120. That came with Tank, Stand, Glass tops, Lights, and Reaction Stg 4 Canister filter, and all the fish ( which I rehomed). But if its in goo shape id say $200-$250 is a good price.