no multiply option vqmod for opencart mijoshop 2

DO NOT CONTACT ME UNLESS YOU HAVE FULLY READ AND UNDERSTAND MY REQUEST, DO NOT JUST SEND ME YOUR INFO, SEND ME EXAMPLES OF WHAT YOU MADE. I DONT CARE ABOUT THE HUNDREDS OF SITES, ONLY THAT YOU MADE VQMODS. You must know opencart well and hopfully mijoshop as they are a bit different. I need someone to create a vqmod for opencart which i am using mijoshop in joomla. It should be pretty simple. I need to be able to add an option that will NOT be multiplied by the items in the shopping cart. My budget is not huge so do not bother with expensive requests. For example, the person wants to order 150 wristbands. So in the quantity box they enter 150 so it will multiply the price $.50x150. However if i add an option for a setup fee of $25 what the system will naturally do is $25x150 which is not what needs to be done. It needs to only add $25 for that order. So the invoice amount FOR THAT PRODUCT should be $.50x150+$25. Keep in mind however you build this client should be able to order multiple times per product and not be limited to this one order and will have to place another order for this to work Example: [login to view URL] So i guess the mod should work in a way that i can set it based under the product page or backend options setup. Whenever this particular option is used that value price will be added to the cart as a separate item or bypass the quantity. Please keep in mind who ever takes on this project must also make sure whatever they make does not conflict with any other module and properly test on my site.