RomRaider

I've done good amount of searching, but can't find any information online or this forum about any successful JDM AVCS and 4EAT integrations. I've been running my JDM EJ205 (I believe '04) with a USDM ECU for about years with no issues, but I'm definitely missing out on the low end and I feel it could be better.
I want to know if there is any actual solution to getting the AVCS to operate with the US 4EAT. I know that I would have to get the JDM ECU, but which one and would I need to get the JDM TCM, too?