I'm diggin' it! The tile is going to give it a very classy look. Not to mention, that little lip around the tank will give a place to set your IceHouse and mustard. :tongue:
Probably personal preference, but in the last picture, what are you going to do to finish-off that vertical edge? I'd figure that out and do it, and then tile to it. If you put the tile down and then put a corner mold on top of the tile, it's going to look like the mold was an afterthought, whereas if it's done prior, the grout will go to the mold and look better. Again, that's just my preference...I'll go pound sand if need be.