Got rid of ignoreGUI config. Now recognizes the buttons on GUIs and doesn't inject price to them. Changed formatting to skip the .00 if the price is just an int. and only show the decimals if they matter.
Fixed the bugs with item spreading with left/right clicks. Added a enchant system where the prices will also be calculated based on the enchantments on those items. Enchantments are also priced based on the level of the enchant. Enjoy! Let me know if any more bugs are found!