Aftermarket or retrofit fuse box?

I'm rewiring mine, and am using two, actually. Using a "like new" EZ wire harness and two JEEP relay / distro boxes, which have been "melded" to get more relays. In other words one or two modules from one box went into the other. Before this, I had a Caravan? box under the hood. They work fairly decent, as well. You just have to troll a junk yard and find what works. Some of the stuff is difficult to re-configure. I like the Jeep boxes

You are looking here at my 67. The EZ panel is about where the OEM was. The vent has been replaced by an early Mustang vent, cut way down to only save the damper butterfly. Jeep box is at top, and Holley EFI is tucked in below. Believe it or not the kick panel will fit with a little "work."

The black area of the Jeep box takes "mini" blade fuses. I've forgotten what the larger ones are. You can get them from something on the order of 20A to 60 I think. (JCAS fuse is one term)