Quick Roblox Tycoon Game Build

I need a straightforward Roblox tycoon that can be designed, scripted, and published within five days. The core loop is classic tycoon gameplay: players generate income, purchase and place structures, then unlock successive building upgrades that visibly improve their operation... (Budget: $250 - $750 USD, Jobs: Game Asset Creation, Game Design, Game Development, Game Programming, Game Testing, Game UI, Roblox, Scripting)