HTO is a well received mini-mod which overhauls the original game's trading system and expands on other minor elements to improve gameplay immersion.
This addon for HTO 2.0 features two small mods: -No quest time limits. I made this change myself in the tasks_manager.ltx file. You will no longer need to rush to turn quests in for your reward, it comes in handy for certain quests that may take several days to complete, such as the one where you must find the Duty soldiers rifle. -Widescreen POSP and Binocular reticle textures. This mod is by Briarius and Gnomus, from StalkerFileFront.com before it was suddenly taken down. I included this because it's an excellent mod and is a bit difficult to find, as are many of the mods which were lost on FileFront.