Wiring help needed

How do you tap into the fusebox on a '75? This is way different than on my '68. No spades to connect to. Solder onto a "fuse terminal" (clip at each end of fuse) and add a fuse?
I've got the Blue Sea fused distribution box installed, just need to figure out where to get "Ign On" power and a source for lights.
If I seem frustrated, please understand I'm so close and I am dying to start this car!