Some of the systems might be unique, if not new technology or specifically designed and made for this use case, with the R&D sponsored as part of the project bu

Some of the systems might be unique, if not new technology or specifically designed and made for this use case, with the R&D sponsored as part of the project budget. There might not be a prototype, because the delivered item is the prototype. Sure, it should be tested before being shipped, but it doesn't help when it ultimately doesn't perform as expected and there is no alternative at hands.