Yes, I agree that the THX DVD colors are really wonderful!
But I must admit that, if I didn't know of its existence, the 35th BD could seem to have a very good color grading - indeed, it has that "real look" that's good, but it's not the right one for the movie... and, it's not the total color mess that is "The Matrix"; infact, quite a lot scenes are really close, color wise, between the two versions. I felt to write this out because the 35th BD is a really good version, but the THX DVD is better, IMHO, in respect to the color grading.
So, I hope to bring the "best of both world" with this project!