An important part of the new store design is a collaborative hub which staff can use for training and demonstration purposes, before customers can purchase the product. The collaborative hub in the new store is designed in Shenzhen and manufactured in Sydney. Large Mart ordered a collaborative hub, and it was delivered on 2nd June 201x. On that day, Large Mart also receives an invoice of $15,000 from the Sydney manufacturer as well as an invoice of $23,000 from the designers in Shenzhen. The truck driver who delivered the collaborative hub left an invoice of $1,500 for its delivery. On 3rd June 201x Large Mart incurred $2,300 for commissioning the collaborative hub. That is the process of assuring that all systems and components of the collaborative hub is designed, installed, tested, operated, and maintained according to the operational requirements of Large Mart. Large Mart pays all invoices by the 9th of June 201x through EFT. As part of this payment Large Mart claims an early payment discounts of 5% from the invoice of the designers of the collaborative hub.

Question: Calculate the cost of the collaborative hub and provide all journal entries that are necessary in the books of Large Mart to account for the receipt and payment of the invoices for design, manufacture, delivery and commissioning of the collaborative hub, and provide an outline and explanation for all necessary calculations.