I would love to see those on the website however I am not sure if that statistics is a good idea. It's really SE's secret thing (unless your character.)

I am not sure what you mean by item pricing.

I say YES to Auction House, I would love to see SE to make something similar to FFXIAH.com.

Really, I don't need a big WOW on the website, just make something really useful.

Now... This thread is hard to understand and I also am a programmer. You would need to make more details.