What is wrong with out of the box, Microsoft air to air and Microsoft air to infidel? Why reinvent the wheel?
Not Invented Here
Several years ago I was working for a contract mfg. co. We were approached by a major navy contractor to manufacture a cooling system to be used in nuclear subs. After looking over the engineering drawings I suggested a cost saving idea.
There was an off the shelf system that sold for less than $100.00. it would have needed the addition of two air flow switches in order to meet the navy's requirement. Total cost: less than $200.00.
The navy rejected my idea. We built the unit to their engineering drawings. Cost: $25,000.00