Management with Google Sheets and Forms

Looking for someone that have created management system on google drive with google scripts (if necessary) We need to manage our inventory in various locations and our daily profit and expenses. We are looking for a easy to use interface that we can see all of our operation in a dashboard Basically we need: - Profit and expenses - Product registration - Customer/store registration - inventory control We need a solution that we can quickly update our inventory with barcodes by printing and scanning products We have all the information on google sheets already in 4 tabs. all the information necessary will be there. A documentation will be given upon request if necessary. however on excel i think is pretty much simple and clear how the whole operation works. We are open to any ideas or modifications necessary to make the management flow easier and less labor intense We DO NOT Need POS or invoicing system just basic management please make sure to create a system that can be easily grow and inplement more things on the future as we want to be a ongoing project. Payment will be release when the product is tested and completed no exception only bid if you agree with the terms above