Enhancements to a .NET application

Looking for a late-night developer who can assist us enhance a .NET web application which is functional, but need to transform its landing page to a mini store with three items. Each tap on an item adds its hardcoded price to a total price field, then, a checkout button would trigger sending the total to a websocket destination. The page is currently functional in non-store format. We need to transform it into an acceptable, presentable format for a demo presentation. Bidder must be available immedistely as presentation is due in 10 hours.