To finish existing website, fix all bugs, install new modules zencart

We nedd to finish existing website, fix all bugs, install new modules zencart...
www.diamondpackaging.co.uk
* Payment modules install Paypal/credit card
* Install shipping modules
Royalmail shipping module
https://www.zen-cart.com/downloads.php?do=file&id=190

international shipping weight/country based price module
https://www.zen-cart.com/content.php?111-how-do-i-set-up-the-zones-shipping-module

* Orders Management in bulk (dispatch/Print/status update)
Like example
https://www.zen-cart.com/showthread.php?51439-Super-Orders-Add-DETAILS-to-Batch-Form-Print
* On invoice print should be QR barcode (contains order number), to be able to scan it with scanner
* VAT/TAX module, when new customer register, they should be able to enter VAT registration number and if its valid, invoices should not have any TAX (outside UK) or if its not EU country TAX shold be 0% automatically as its Export.
Also monthly report should be where we can print summary of sales which had no TAX (Export)
Like example module:
https://www.zen-cart.com/downloads.php?do=file&id=15
* password reset (in case customer forget password he have option to reset it)
* to Have some banner/link asking customer to leave google, trustpilot review, (give some discount code after leaving review as reward)
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* Special price for specific customer setting function.
Like example new customer call us asking some special prices for some products(as they buy a lot of it), so we can set that product price for only that customer (the rest of products will be website prices, only that specific product for that specific customer will have special price)