Hi, our regular metal above ground pool is over 10 years old and is rusting through due to leaks over the past couple years. Anyway its looking like major repairs / major dollars to fix it so I was wondering if I could put an Intex in its place without too much trouble? The pool I have now is 18' X 48". I would like to replace with the same size in an Intex because I have an existing deck around nearly half of it. Has anyone done this or have any advise to share? Thanks!