Both men and women have equal rights in the Vedas, which means that the liturgical process can be performed by the deceased's family members, sons and daughters, parents, siblings, and so on. If no one has a family member, then this best work can be done by anyone.
The head should be pointing north, and the feet should be pointing south. This is known as Dakshinabhimukh.
After the Agni Sankar rites, you can prepare normal meal at home, according to Vedic tradition.
There is no similar structure in the Vedas.
Nowhere in the Vedas is there any reference of such a system. It is a widespread superstition.
