Good day, i must say that if you want to to do such changes to your scaffold architecture, better for your company or project to leave GRUNT behind, its almost deprecated by web develop community
i can do what you are looking for with GULP that is more intuitive, programable and scalable.
Some about me:
3+ years of experience in software development in this time i have
Implemented Front-End practices such as :
Used modern javascript tools: npm, bower, Yeoman, JSDocs, JSLint
Creating automated dev / production environment using GULP Utility plugins.
Functional JS using Lodash
Modular JS using browserify
Modular CSS using SASS preprocessor
Using John's Papa Style Guide for Angular development
Performed unit test using Karma / Jasmine
Created web, mobile, tablet applications for company's customers using AngularJS