This is a simple HUD mod that does the item calculations for you!
The mod doesn't just calculate the total as shown on the QuickBuy list, it also calculates pretty well upgrades on most items and the absolute majority of all builds, for example, the item "Leech" which has 2 mandatory pre-upgrades, ie "Bullet Lifesteal" and "Spirit Lifesteal", will have it's Total Cost be 6.4k souls.
The mod will also conveniently display the next items from the QuickBuy queue, in addition to the already present first next item, as well as the "Remaining souls" count to buy the item on top of all 3 of them.
And finally, the mod will display on the right side of the item cost, the "Remaining souls" count to buy the item in the order they were placed in.
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Note :
If a "pre-upgrade" item is placed after it's upgrade item, the calculator will not substract the pre-upgrade item's cost from the total, this is by design, the reason being that a few items have multiple upgrade path possible and the way i decide which item gets bought for the upgrade is by looking at the next upgradable item in the queue, quick example "Extra Stamina" whom has at the moment three upgrade paths possible.
When Quick selling an item, the Total Cost will take it into account, but since there's no way for me to know if an item will be sold at half the price or full price, the mod will always assume the item will be sold at half it's purchase price.
QOL Lock (https://gamebanana.com/mods/650634) :
Enhanced QuickBuy is now present within the QOL Lock mod.
If you have the latest version of the QOL Lock mod, installing this mod may cause conflicts and thus weird behaviors, so just keep QOL.
To enable it, simply open up the QOL Lock mod, click on "HUD", scroll down to SHOP, and find "Quick Buy", enable it and check the "Enhanced" checkmark, and voilà
QOL Lite :
Enhanced QuickBuy is now also present within Dacooderr's QOL Lite mod, no activation needed, just install the mod at : https://gamebanana.com/mods/678180
Universal Mod Manager :
Enhanced QuickBuy now has an integration with the "Universal Mod Manager" which is a mod that allows for other mods to have configs, very similar to QOL Lock.
The Universal Mod Manager mod is completely optional, but i'd highly recommend it, here's the link to it : https://gamebanana.com/mods/693642
If there's any specific setting you'd like me to add, just comment and i'll probably add it.