If you want general prices, my thread basically offers what you should be looking to get more or less...
On things like Blue Carnations, I see a lot of people going about 500g each on those but there are a few (most I could put you in contact with) that would do 550g each.
The bulks you're trying to sell in the market, most people in the GIE don't have gold for that quantity, but the price per is reasonable for a bulk.
I recommend putting your items in smaller bulks on the market, say 5k-10k. People don't like to spend all their gold on one particular type of game item when you need so many other one's to do anything other than collect. :3