Funeral prayers can ask the coffin shop or if u know ppl urself, u can contact taoist or buddhist temples for service.

Depends on preference, Taoist is more detailed, Buddhist is simpler

Traditions. Everyone'a death experience can be different. Most will return home on week 3 when they start to search for family members and they usually appear at the back of the house, kitchen especially. Thats why we ppl always say the hear something in the kitchen, children or ppl w yinyang eyes say they saw deceased in the kitchen. And some tangki will tell u deceased cannot enter the front door, some cannot enter the back too because of the deities worshipped in the house, the energy too strong or blocked by other ghosts protecting it

They will be outside the house. By 4th week, they're hungry n thirsty. Burn some foods to give out smokes n offer some waters after offered to the Buddha, they will receive it

Sorry for ur loss. Glad to hear that nirvana helped arranged everything