O2 sensor for H23A with PCF

[bavarianblessed]

So I have my nice shiny H23A VTEC with the auto MCJA and PCF ECU in my garage and I'm gathering parts for the swap. On the Accord SI-R wagon this came out of it used a single A/F or O2 sensor and the part number I found for it is 36531-PCA-014 which goes for $245 or so online.

Does anyone happen to know what the NGK/NTK or Denso equivalent part numbers are?