I am probably the least qualified person on this board, but I do KNOW one thing after buying my first boat this year- A sea trial and survey are essential, without these you will spend many weekends "wondering what this is" and literally staring at little things around the boat, trying to figure it all out. I probably lost four weekends (a month's worth of dry storage) just going through the systems and nooks and crannies that a surveyor could have shown me in one afternoon. And this is AFTER years of reading forums and This Old Boat, by Don Casey.
Also, storage, renovation, and repair costs are probably going to be higher than you expect. Not trying to scare you away, I would still take a hard look at that boat! Hopefully, some of the posters here will advise on that price and that model.
Check this site out:
About the T30