The outline of a representative forum (or Constitutional assembly), in the simplest wording possible.
The outline of a free trade and power-distributed economy is added, in the simplest wording.
Details are added in a fairly generalized way, using wording that expects a well intentioned reader.
This Constitution is optimized against the threat of corruption, and therefore quite detailed. The wording is extensive and battened down against mischievous reading. Roughly half is devoted to the attempt of keeping the Government in the service of the people. Most of the rest is to keep economic and military powers from taking over the Government and therefore people. This model is presented in 3 ways: how it fits to the 50 law model, only the laws, and then with the reasoning behind each law. For convenience here these versions are called: 239-medium, 239-short and 239-long, referring to the length of the document and referring to the total number of articles present in all 9 Chapters, which is 239. (The other Constitutions are similarly named to the amount of articles they contain.)
Some people think a law is a powerful thing, because it's enforced on them from above by groups vastly outnumbering them and their circle. Constitutional law is different: it's a dance without a choreagrapher, it's an ecological system that is always alive pushing pulling working rotting building grinding. Though a ship may be perfect, it can still run into the ground, the captain foolish enough not to fear the might of the sea will drown the ship, and even if all seems well and easy the ship may arrive in the port in good condition - it can still be the wrong port. It works if you want it to work. How hard that is, is where Constitutions are different from each other. Some may be easy to steer, to clean, because their systems are efficient clean transparent simple and balanced with each other, giving the opportunists corrupt and criminal a harder time breaking into the systems and exploiting them for their egocentric self gain; fools without conscience that they are. Others may be more cumbersome to maintain, or have economic and Government systems that have a tendency to spiral out of control over decades or centuries due to endless the accumulation of power and wealth. Choose your Constitution wisely, it is an important choice.
The model presented here is expected by me (the writer) to work for a Sovereignty perhaps up to 30 million people; better may be 20 million or less (larger current nations could divide into nations of around that size). This Sovereignty is an absolute: money, law, Government, land, military power, border control, industry, language, citizenship, everything. International relations are free bilateral negotiations in the moment. Even bi- and multi-lateral treaties are viewed with suspicion. Do they outlast the Government that signed them: probably not. The United Nations: what is that ? It has no place. International court of Justice: what is that ? Are they declarations of war on our people by an Imperialist force ? We want peace, not Empire. We do not accept the rule of the Imperialists, neither do we want to form an Empire of our own (me myself and I that is I guess, or hopefully we that might some day agree with these proposals).
The reasons for this and all other issues can be found elsewhere on this site. Everything is argued logically, therefore it is easier accessible for doubt and fixing mistakes. Things are quite detailed here, they may not be what you think they are at first glance. Being detailed is both a problem and strength. On the one hand it makes it difficult to grasp and verify, on the other hand the amount of details is designed to resist destruction at the root by opportunist ignorant and criminal people.