Wiring Harness -- universal vs reproduction

Got a 66 Goat and I want to replace its old wiring with new harnesses and fuse box. I am looking for thoughts on universal kits like from American Autowire of a reproduction harness from YearOne. I do want to add power locks and windows and autometer gauges and other stuff down the road and I am not too sure which is the better way to go.
Thanks

Go with an original style reproduction harness, in order to preserve the original appearance and value of your car.

It will also be easier to install than a universal one.

That's what I was leaning towards but I am going to put in AutoMeter Cobalt gauges and I don't think reproduction harnesses will work. Can anyone confirm my suspicion?