Restorations can get quite costly and the simple fact is it's like pissing money down a hole. On the other hand these are old cars now and using one as a daily driver is kind of an uphill battle because of the need for constant maintanence and alot of the things that they were made to use are not readily available anymore. Like they weren't made to run on the poor state of gas and oil these days. These and other things can be worked around but I'm not sure it would be easy or cheap to do on a constant basis.
I'm not trying to discourage you(even though it sounds like it). I own a 69 as well and love driving and puttsing around with it, but I would be hard pressed to use it as a daily driver.