Advice on a used TC in the $5,000 - $8,000 range

I bought an older 2004 TC, but I didn't know much about water damage. The unit I got had been through hurricane Sandy on Long Island. With rot on two corners at the jack supports.

So here is a quick test. Try to tighten one of the lag screws holding the jack. If it turns easily it is probably in rotten wood!

Hope this helps.