Please be sure to use a 1ohm resistor at R465!
Sourcing parts is up to you, but most are quite easy to find if you know how to use Digikey, Mouser or other electronics parts shops.
IF YOU PRODUCE BOARDS YOU MUST TELL THE FACTORY TO IMPORT THE GERBERS AS A MENTOR PADS FORMAT PROJECT
Thank you Chucky for the locator build hosting! I recommend all go here during your builds for some great help!
A4000 Locator Site: http://locator.reamiga.info/locator.php?project=A4000
A4000 Build Guide, Thanks to Chucky! https://wordpress.hertell.nu/?p=1053
Shred made a great repo for an updated BOM. Thank you! Please visit the new BOM here: https://shred.github.io/a4000-bom/
Amiga New Custom Chips and 23 Pin Connectors: https://icomp.de/shop-icomp/de/shop/product/alice-aga-nos.html
READ THIS: New board files and gerbers have been created and posted to the Github project page. A minor error was discovered that had solder mask covering the ground pads for the support bracket on the mouse and joystick ports. Previous boards work just fine and are not in danger of not working. This is more of a cosmetic update than anything else. Get the new file in the Gerber folder. When using the Chinese sites like JLPCB and PCBway you will need to upload the complete zip gerber archive and email them about the board design. It is done in Mentor PADs. This is a professional layout and it will not usually work with the automatic software they use. I have produced these here in the US and have no problems. Others have used JLPCB with no problems as well. I f you would like a single board and need help I can order sets of 5 and would be happy to sell you one. You can email me through the contact page or directly at firstname.lastname@example.org and request one. Currently they run $55 shipped in the USA and $110 international. I usually need 10 boards minimum ordered to get them for this price.
Thanks to a community effort the funds to reverse engineer the Amiga 4000 Rev B. This page is a place to follow updates and help direct those wanting more information, the board files, schematics and other project files located on GitHub at the link below:
Boards are available for purchase from me in limited quantities for $85 each.