My dad has a place that will probably be empty up in Northport about 45 min north. It is also south of Sarasota by abt. 30 min. Great fishing areas. Dont know if thats too far for you but it works. Its about 10 min from Englewood beach and 15 min from Venice beach.
I stayed in Cape Coral on the water. The rental for the week was like $750 for the week. The place slept 9 people, 2 baths, had lanei with built in Pool, 4 person jacuzzi, on a lagoon with boat lift, about 5 minutes to the Calasoochee river, about 30 minutes to the gulf of mexico because the manatee zones. I have stayed in the place for 3 years, last year for 2 weeks. By car Sanibel Island is about 4 miles away. If you need more info I can furnish it to you. Vinny