CubeCart v3 Mods Required

I require a set of mods made for our cubecart installation @ [login to view URL] The site is made in PHP and MySQL, with some CSS and XTemplates. 1st Mod. We need to show a including VAT and excluding VAT price on the site, currently all prices are before tax, we would like to show customer how much with tax too before they purchase.? This would be achieved by pulling the variable PRICES and SALE_PRICE and applying SALES_TAX to them. 2nd Mod. We require some modifications to the [login to view URL] to make the product page look better, just simple modifications like having the Prices and Stock level floating right of the page, at the moment it is central. 3rd Mod We require each product page to show a list of youtube videos related to the content of the product being viewed.? This mod will need to be turned on/off withing admin for certain products.