When a cart's total value comes exclusively from a manual price, items price and delivery price are 0, no payment systems other than Gift Card (if active) are offered.

• Add an item with price 0 and select a delivery option with price 0
• Add a manualPrice amount to the item
• Proceed to the payment step in checkout and no payment methods are returned as available

There is no known workaround other thank adding some ammount to the item's price.