The entire existence of Pakistan depends on being a strong Islamic entity in South Asia and selling their Nuclear Weapons as being the defender of Islamic Ummah. It is a different issue that all these factors have been exploited by the all powerful Army , extremists and other vocal actors leaving very less modern, practical voices in the country.
I am reasonably certain it is the opposite. Saudi Arabia funded Pakistani science to make sure they developed nuclear weapons.
Saudi Arabia has no need to develop nuclear weapons or posses them as a result. They can just ask Pakistan for them at a moments notice if they actually need to.
yep! pretty much, but selling the supply chain and specs themselves is almost as bad. It took PK almost 30 years with PRC information transfer to build the Islamic bomb, but 10 for NK thanks to Khan Labs.