To my knowledge - there is no BD enforcer on PDF.
All partners at Airbus (all reputed national manufacturers in Spain, UK, Germany and France), who manufacture sub assemblies and components, are risk-sharing partners. The "close enough coordination" needed for JIT operations for assembly in Toulouse are gargantuan and severe (especially for large items like wings, tails and engines) using Beluga aircraft. Try THAT one - on for size, in our scenario. Dilli door ast.
I will post a video on A350 assembly I saw on Netflix. If I can find it. You guys will understand the scale and complexity of what goes on.
But before reaching for the moon and the stars, we need to consider much, much smaller commuter aircraft platforms.
Even a country like Indonesia, which has the most experience manufacturing ATR size aircraft, has problems selling these items outside their borders.
You need to see
who will buy and the market forecasts, before making Billions of dollars in investments and other technical factors. How many South American and African countries have bought any thing other than smaller fighter jets and helis from Pakistan and India? Not many.