There is no more price guide due to items prices constantly changing.
You can review other trades to see how much items sold for, or make a new topic asking for a price check.
If you click the price check tab in any of the trading grounds sub topics you can see previous price checks. For example:
https://forums.d2jsp.org/forum.php?f=52&t=2This post was edited by Josha on Jan 15 2021 03:30pm