The information you have so far is all good. Go for it!
I will add that; how close you can space the tiles will also depend on the quality of the tiles...meaning if they aren't cut perfectly square they won't be easy to put close together and maintain straight grout lines.
I will add that; how close you can space the tiles will also depend on the quality of the tiles...meaning if they aren't cut perfectly square they won't be easy to put close together and maintain straight grout lines.