Whoop-te-do! You added a few memory chips and call it putting together Apple II boards! Like that muslim kid who took the guts out of a store-bought clock, placed them in a pencil box and said he invented a clock. Wow, what an accomplishment!
Well, I've assembled bare Apple II motherboards with all components. And way back then in the 1970s on the earliest revision motherboards there was a experimental breadboard section for hobbyists to add their own circuitry, which I did add for tweaking color graphics (to create many more color combinations). I also did other mods to the motherboard for lower-case and new commands, and ability to use eproms instead of factory roms. I coded and burned my own personal eproms to have custom fonts, and a custom bootstrap to run my own utilities burned in the eproms.
You know nothing about what went into these machines, akin to someone changing tires on a car and thinking they're a mechanic. Whoop-te-do!
No, silly child. Fabbing one up from a circuit board. What's more, I designed and built my own video card using 4116 dynamic rams, back in the early 1980s. I wanted something with higher resolution than what was available at the time.
Do you know what "Row address strobe" or "Column Address Strobe" means? Do you know about "refresh"? Do you have any conception of how a dynamic ram works?
I still build microprocessor control systems today. How about you?