Any structural engineers and contractors out there

I'ts always been a dream of mine to enclose the back porch and turn it into a sun room with a tank in the middle. The porch is about 20'x16' and sits on 4x4 supports on a concrete slabs. Need to know the load bearing capacity and perhaps do this with the help of a contractor and with some sweat equity on my part. Any one in this line of work wiling to help? Call me at eight zero one 664-396zero or PM me. I'd be great if someone  does this for a living but is also a hobbyist so they understand exactly what I'm trying accomplish.

Actually ! I may be able to have the engineering department do some calcs for you I've seen something similar done I'm a building inspector for south Jordan and guy out here has built a huge kio pond of about 1000+ gallons so shoot me a text and I can try to help you out 801-688-3225