Is it worth it? 1985 sunsport

[Supra85]

I got a 1985 Supra sunsport last year, has the 454 in it, the motor was went through about 7 years ago with quite a bit of money put into it, I have all the paperwork on it, it runs and drives great, just put a new carb on it, I paid $3,000 for it. Been repainted in 2007, paint is still good and new decals. The floor is getting soft I know a guy thats redone multiple boats he said I would have around 3-4K into new floors and stringers if he did them. Around 5-7 if I have a marina do then around here. I was going to rebuild the seat frames my self and have them recovered. I figured I would have 6k into redoing this boat. Witch leaves me at $9,000 into the boat. What’s your thoughts?