Poke around the original project's github page for details. This is where I started at once I discovered this project.
https://github.com/charcole/NeoGeoHDMI
My Parts list:
Consolized or ready-to consolize MVS board or an AES if you are brave (Mine was a MV1B)
Altera EP2C5T144 and USB blaster (Amazon / Ebay - about $30)
30 1K resistors (ebay - $5)
25 470 resistors (eBay - $5)
1 solder breadboard (Radioshack - $3)
Nylon stand-offs to keep the breadboard from touching the main board (Ebay - kit from china for $9)
1 old PC floppy cable (Might have them laying around? Free? Ebay otherwise)
HDMI port (ebay - $5
Misc wiring (Radioshack)
Tools:
Wire strippers / clippers
Multimeter
Fine point soldering iron
Solder
Desoldering braid
Patience of a budhist monk
Understanding family
Vodka
Wine
Beer