You could do wood but the loadings and jucuzzi size/placement would be important to determine wood size, spans, and joint types. Also, your soil type/density will determine footing size.
If you want a stamped drawing, then that might cost you a buck or two. I'm assuming your not gonna tell the building dept but having a stamped drawing isn't a bad idea if you want to cover your ass (or tuck in your case) liability wise.
There is a Auburn engineer at work that would do it for a nominal fee, but I wouldn't wish him on anybody I didn't want to torture.