[petek]

Changing the wiring harness would be a pain, even if you used the Painless harness (I have a Painless in my CR Cobra).

Changing the fuse box itself wouldn't be too difficult. I think Painless has a generic fuse box that might work. Or if you wanted to keep the use box that you have, remove it from the car, drill out the rivets and install #4 screws and star washers.

Like DV said, the barrel shaped glass fuses are old-fashion ... but they can be made to work with a little maintenance. From the picture the fuse box doesn't look to be in too bad of shape, but I'd still be tempted to replace the box with a newer blade type fuse box.