Are you asking us for suggested measurements or did you forget to add them? :-?
If the area gets full sun most of the day you will have problems with algae, unless you are able to shade it in some way.
Remember the shallower it is, the warmer the water will get in summer.
Moving water is better than still, less algae.
Any lfs can sell you a suitable pump and filter (often they are all-in-one jobs) to run the fountain.
If you plan to add a water lily or two make sure they are at the opposite end to your fountain as they dislike having water splashing them all the time. Water lilies are good for surface cover. Plant lots of plants in it too. It will help the biological cycle and give the fish plenty of hiding places so they will feel more secure. Makes it harder for cats etc to go fishing too!
Having never made, or seen, a tiled pond I can't help you there sorry. I assume you are going to seal it with something.