I see several here making these boards I did and am very impressed. I don't think the word is getting out on all the updates and help I provide with getting them built. Here are some resources I have put together for those of you looking to build them. I also try to do orders on boards from time to time. I have mine all made in the USA and need at least 10 orders to make them a fair price of $85 shipped here in the US. If you want one let me know and I will order another batch. The last group I did was green and just ran out again. I tend to keep a few in stock for myself though at all time for doing PCB replacements when I don't feel like spending hours troubleshooting a board. It's faster for me to just make a new 4000 a lot of the time over trying to fix and find bad spots on a nasty board I get in.
You can also visit my sites 4000 replica section where I post a lot of updates too here.
For those looking for more help in the future you can use the component locator John is hosting for me on his site here. It will tell you where every part goes. Its very nice and has saved me a lot of time putting these together.
My Github also has notes and tips I post as I do builds. It's here.