Urgent WooCommerce Checkout Setup

I’ve already installed a WooCommerce-based shopping-cart theme and populated it with our products. All I need now is a quick round of configuration and a clean clone to a sister domain.

What has to happen:

• Delivery date selector
I’m only offering specific selectable dates that I set in the back end—no ranges, no dynamic logic. Shoppers must choose one of those dates on the checkout page before they can proceed.

• QR-code payment step
Instead of a gateway, checkout should simply display our fixed bank-account QR code together with the order number. Customers will scan, pay externally, and we’ll confirm manually. No extra fields or instructions beyond that, though a standard “Order notes” text box should remain available.

• One-to-one site clone
When the above is working, copy the entire site—including products, media, and settings—to the same server under a new TLD. Both sites must stay isolated yet identical so future edits can be managed independently.

I’m aiming for a fast turnaround, ideally within the next day or two. Please let me know your timeframe and which plugin or code approach you’d use for the date picker and the QR-only payment method so I can green-light you right away.