Hello Drakkanis,
I'm not sure if it's a good idea to increase the potential restock frequency even more than EE already did: every hour and whenever the character level difference between the trade requesting character and the character who triggered the last restock is >= 1. Gameplay preferences aside, this has a serious technical reason:
There is a limit of item handles the engine can use (64,000 as far as I remember from Raze). This limit will never be reached by most players, though there are some reports from players that probably did (there might be another problem with high item amounts, maybe FrauBlake who did much research knows some more ).
The more often traders restock their inventory and create new handles for every generated item stack (every item stack has a handle, a unique ID, not every item; if a stack gets splitted up a new handle gets created) the faster you'll reach the limit (there are more situations where new handles are generated, crafting for example). And considering that you seem to be a passionate crafter and trader you likely will.
So if you're determined to let traders restock on every trade request (without time or level condition) it's probably necessary to overall improve the handle and item economy of the game (FrauBlake did that to a certain extend in his XC_Bags mod, as far as I know). And that would require quite a lot of time and knowledge.
I don't want to prevent you from doing this modification and if you would like to do that I or others modders can show you how to remove or reduce the time frame; it's not a big deal. But I would not recommend to do that. Don't you think that restocking every hour and after level-up (on trade request) is quite much, since time passes during talking, exploring and fighting?
