Conditional Journeys for date defined by Lead with criteria

Conditional Journeys for date defined by Lead with criteria

Hello dear Zoho Marketing community. I have a question about Journeys.
We need to send a series of emails, triggered X days after the date field (defined by Lead when submitting a web form). Tree planting date in this case.  

The email series depend on one more criteria (specified by Lead also): Mango | Orange | Apple. It will be something like farming cycle tips.

[Form]
Tree planting date: 7 july 2021
Multiselect field: Mango | Orange | Apple

For example.
If client choose "Mango", then he enters the Mango Journey, receiving series of emails, where the 1 email is sent 100 days after the Date specified (!) by user.
The 2nd email = 30 days after that.

For Apple Journey the delay for the 1 email will be 50 days after the date, the second - 20, and so on.

And is it possible for 1 Lead to join both Journeys (Mango and Apple)? So he receives both series of emails?

Probably there is an option of having 1 Journey with different emails/delays?
Is there any limit on the number of Journeys we can create in Zoho Marketing Automation?

This guide says:
"You cannot have conditions in smart series and date-field journeys."
"You cannot set delay for a condition"
https://help.zoho.com/portal/en/kb/marketing-automation/user-guide/lead-journey/articles/pre-designed-journey-templates#Set_up_process

Any hint would be very appreciated, thanks.