What you have here is very much tilted toward the small/mid-cap companies. That's a valid strategy, but it's not what the three-fund portfolio does. The three-fund portfolio owns the entire market, weighted by market cap.
The extended market fund is basically VTSAX minus what's in the 500 fund. If you want to mimic a US total market fund with what you have available, you'll buy the 500 trust and the extended market fund in roughly a 4:1 ratio. The small-cap value fund is extra and you can skip it if you're going with this approach.
If you want to do 70/30 US/international, not weighted toward small caps, skipping bonds for now, you could do 56% 500 trust, 14% extended market, 30% all-world ex-US.