my personal thoughts..only
first you can ask for the undertaker for opinion and cost ?
his cost for coffins , papers, incense... is between $8K to $10..
and prayers services ...maybe extra $5K (drinks, makan, etc etc..)
he may do everything for you and advices on such matter and customs
..(if his dad..conditions is due to prolong illness and not sudden and not under "police investigation"? (eg: due to fall..or from A &E admission)
may not need to do autopsy but must collect body from SGH mortuary..
(the under taker..will collect on your behalf...and your friend may has to bring some of the decease's personal clothings to dress up)
he has to let the undertaker know his cost and budget (expects easily between $20K to $30K - minimum)
this sum may be inclusive of "after death" services like urns, temple, burial and prayers
ideally, try and do 3 days instead of 5 days unless , got alot of relatives or faraway relatives that are coming down..?
or if the late father has alot of friends .. or visitors
if held at void deck(HDB)..5 days may be taking a toll on those members unless got alot of sons/daughters to help
can try the casket Company..might be easier but abit more expensive but less demanding and stress out