Thanks to some help from members here, I was able to complete my point-to-point wiring replica of the Apple 1, using Vince Briel's Replica 1 Plus schematics:
I made this album before I fixed the duplicate character issue, which was solved by extra grounding. I have loaded many programs, including the Apple 30th Anniversary Graphics Demo (which is just too damn cool) and they are working great.
I'm not really sure what compelled me to make this. Many years ago, the unavailability of the Replica 1 forced me to consider making a replica from scratch, based off Vince's schematics. It has taken three attempts to get where I am today, with a working computer. Along the way I have learnt a lot about 8 bit computing, and I've come to appreciate the 'theory' behind every other modern technological miracle that can trace their lineage back to this special time in the 1970s. These days, cheaper replicas are now available, but I still pushed myself to learn how to make this computer from scratch as a personal challenge.
My replica is a mess of wire, with very dodgy soldering, questionable aesthetics and a disregard for pre-planning. While I still want to get my hands on a Mimeo 1 or other faithful PCB replica, I'm really proud of what I have done here. This was a huge learning curve for me.
My take-away from this experience is an overwhelming appreciation for the modern technological miracles that we carry around in our pockets. The computers that we have today are infinitely more complex, and I'm still studying up on what exactly makes the Apple 1 tick. It was an inspiration in 1976, and it still is today.
I should also give credit to the 'Back to the Garage' compendium by Tom Owad. The plain-English style of this document really came in handy from time to time, and I am going to continue referencing it as I learn 6502 assembly and re-learn BASIC.