That's great that you might be getting a horse!!! Best of luck.
Now, this is NOT to get your hopes down, but as you haven't actually ridden it yet, you don't know if you'll like it or not. I usually have to try 5-6 before I find the right one.
Also, make sure to do everything with it, that you would want to do if you buy it. This includes catching it, grooming, tacking up, riding it in the field, arena, on the trails... Etc,
Anyway, best of luck :)