Well, this is an old thread. I have some updates. I sold that 1988 Arima in 2016 and upgraded to a 2005 Arima Sea Chaser. (smaller cuddy and more deck space)
I sold the old one for $5000 and had paid 7000 for it. So for 10 years and $1000 in repairs it cost me about 3k. My indoor space is now $82 a month. I use my boat all year around and it's a great set up at the boathouse. I am a cheap ass but my boat ownership has been worth every penny.
Cheers, Dave
Here is my newer one...