Alright 1. I don’t think it will take a year for them to make just the basic framework. I think the framework would just be a blueprint, a class in C++, and some hierarchies with blueprints/game objects/actors in them which I would be making the content with by copying and pasting. Number 2. I think simple models are good enough and no I don’t know much about CG besides basic modeling/rigging/materials/animation for the characters/scenery and still renders for the UI textures. Number 3. I wouldn’t be selling the system since I’m not the one making it and why couldn’t the person making the system just sell the project file.
And number four its a very simple game and it doesn’t need any more details in the three docs. The docs describe everything that go on and all the details for all the features are there. It doesn’t describe the “style” but the gameplay is basically just weapons/grenades and killing each other and looting monsters and mining and crafting and banking. I wrote about what leveling and equipment does. I wrote about how ammo and weapons work. And that’s pretty much all there is to it.