Yes, this is certainly possible.
You can do almost everything yourself, eg carry the coffin, help close the coffin, help close the grave, etc. As long as you indicate it in advance to the funeral director.

A deceased person must be buried or cremated within 6 business days of death, but no earlier than 36 hours after death. In exceptional cases, we can request a postponement.

You must first call the doctor on duty and then call the Funeral Care Consuelo Memorial to discuss the final care and / or transport and arrange a time to arrange the entire funeral.

No, unfortunately that is not possible. Funeral expenses must be paid 24 hours before the funeral. If you are insured, you must ask your insurer how much they will pay out for the funeral, the difference must be paid before the funeral.