I redid my entire harness with as many new connectors as I could buy. Many are still available, but not from Toyota. The links above should help you get most of them. I spent a lot with Justin and United Race Tech. At least a few hundred pieces and more than a couple hundred $$. Great to work with. Driftmotion, Tweak'd and Eastern Beaver have a lot of parts as well. If you have particular connectors you need I'd be happy to try and help.
I'm trying to get my website going and a big part of it will be dedicated to resources for harness rebuilding. Until then, I can try to answer questions so others dont have to go through all the fruitless chasing I went through.