Customization of Agenda-View in "Modern Events Calendar"

Hi everybody,

I am using "Modern Events Calendar" and i need a certain view to be modified/adjusted. The view does not need to be complete new, it can be a modification of an existing view. But the view should be adjusted in a for that it survives updates of the plugin.

The component is this one:
https://webnus.net/modern-events-calendar

The view I want to have adjusted is this one:
https://webnus.net/modern-events-calendar/agenda-view-clean-style/?ref=16

The adjustments should be:

- Multi-Day-Events are not shown up correctly in this view. They should be shown as "From (...) to (...)" in the first column

- The "time"-column should be removed

- There should be a new column "spots left"

- There should be a "Sign-In"-Button or Link at the end

(- all adjustments should work in german language/date-format)

How long do you think it would need and how much would this cost?

All the best, Julian!