Changes required to Woocommerce Storefront website

I have a Woocommerce website with latest updates. It has no CSS or code modifications and is completely built on plugins using the Storefront theme. I need some changes made. You can request for additional plugins to be provided at my cost to achieve functionality. URL on request. • Custom text field needs to be added to product data section of product editor. Entered text must display under product title in product catalog. • On single product page: remove description, review, attributes toggle and align product description appropriately with short description and product image. • Change all instances of the word ‘tax’ with ‘GST’, including in email templates • On homepage there is an anchor link that scrolls too far. When user clicks button in Parallax hero, should scroll to homepage heading, but it continues scrolling halfway down homepage text. • The Parallax hero height needs to be reduced. The heading below should be visible below the hero with no scrolling. • In checkout, a plugin has been used to add a custom yes/no checkbox. If yes is selected it add’s $50 to the cart total. o The checkboxes are displayed vertically. They should be displayed horizontally on the same row. o The text ‘Is the delivery address not at ground level and/or only accessible by stairs?’ should be same size as heading ‘billing details’. o The amount entered into the plugin allows the user to make the amount inclusive of tax, but it displays the pre tax amount next to the checkbox before tax. This needs to be modified to allow the admin to enter the after tax amount, which is displayed next to the product, and then appropriately divide the tax in ‘your order’ section of checkout. The post tax amount is $50, inclusive of 10% tax.