Blehhh not much progress lately, BUT I have acquired some more bits for the build. Also been talking with a few guys who are also doing the same ITBs and we've found a few more issues with the T3 manifold... The issue is that the TPS is located towards the firewall and hits against the clutch master hard-line. This is not an issue for all the US guys who have the clutch master on the other side of the engine bay (LHD).
So when I installed my new KG Works cluster I forgot to mention that my gauge hood also cracked. Was a pain in the ass but I was able to find a brand new genuine replacement :D. Apparently it was the last one in Australia too! Mazda have more on back order I believe.
The next part I found is a duct that is used in cars that don't have air-conditioning from factory. Since I'm removing my AC this part is perfect so that I can remove the ENTIRE AC system and still have functional air/heater.
Wasn't able to get a brand new one but Richard at MX-5 Plus was able to hook me up with this used part. Would prefer a new one but this is pretty decent.