Hi, I have the top of a large tuna tower from my 48' sportfish that would be perfect for your boat. I removed it because of height clearance issues in my area. It is actually offered with the sale of my boat but if I sell it separate first thats okay also. Its located in Bridgeport Ct. My boat is listed on ebay right now and there is one phot of the boat with the tower still installed. Its a 48' Marine Management Sportfish.