Hey Burge,
Nice looking car! Interior looks great. I didn't think about this previously. I used to have a '73 280 and it needed subframe mounts. I assume it has the similar suspension. Subframe mounts can be very expensive if you don't do it yourself.
I'm not sure it needs them but take a look. You might want to look at this website also. He sells a little manual that tells you how to change them...labor intensive but really make a difference on ride. Here's the website:
http://www.**************.com/
Take a look..definately for the do it yourselfer.
You'll have that car for a long time.
T