Joomla Joomshopping customizations

I have a Joomla site with Joomshopping cart, already set-up and ready to go online FAST... You have to know Joomla and Joomshopping component, be good at php and know mysql for this assignment. If you don't, please don't bid. What i need are a few custom settings in the Joomshopping component. 1) OPTIONS>>ATTRIBUTES: in Joomshopping backend i need to be able to flag as mandatory a "product attribute", at need (simple checkbox), so that in frontend a customer HAS TO choose a value for that attribute, before adding item to cart (the component let's me set this only for "free attributes"(textfield), but not for "standard attributes"(ex: size, color,....). 2) OPTIONS>>FREE ATTRIBUTES: in Joomshopping backend the "free product attributes" let's me set a textfield as an attribute of a product (so in frontend a client can, for example, type in a name/number to print on a shirt). There is no option, though, to set an EXTRA PRICE for this "free attribute". What i need in backend is to be able to set AN EXTRA PRICE for the "free attribute". This is now possible only for "standard" attributes (ex. size, color...). Therefore, in frontend when a client types in his name or his number in the textfield (free attribute) to print on the shirt, the total price is updated automatically. 3) In frontend, when a product has an attribute (dropdown) with many values, the dropdown must show a vertical scroller. If you think you can start working on this project NOW, please bid because this site MUST go online live this weekend.