CRM with POS, include marketing and communication tools,

Description

Hi,
I need a CRM with POS developed using free tools like google sheets/forms/app scripts... to suit my bespoke tailoring and clothing alterations business. this should include marketing and communication tools with automated email/text messaging for following up on orders and smooth order tracking. system should allow multiple alterations on same garment with separate pricing and multiple of same garment type possible on same order, including detailed receipt for printing, include Admin, Staff and Customer login, for order tracking and communication and user-friendly interfaces my business is citytailors.co.uk, please look up and let me know if you can develop this in a timely manner.
Many thanks