Create embedded multi-unit calendars from 4 individual iCals

We have 4 properties which we need a widget to show the availability like in attached picture. It will update the calendar real time with online iCAL from our channel management or once a day data sync is also ok. The widget will be embedded into our Wix site (iframe) and will be mobile friendly. If any development is needed on a seperate hosting (running code or scripts), it shall be done on our PHP hosting. Please send a message saying 'I have iCAL experience' so we understand that you are not blindly or robotic bidding