Hydroflouric acid would be significantly better a frozen bodystill has lots of DNA to ID. Hydroflouric acid (if you have enough) should break that down enough to limit identification via such means. You just need to remember afterwards to get rid of the fillings and gall stones etc as those sorts of things can be used as an identifier.
Then of course you need to find a way to dispose of the the big bucket of goop you have left over... can't just pour it on the lawn as you'd have no lawn and the police might get suspiscious... I recomend dumping it at sea - the ocean is big enough that the meager amount you dump would dilute long before its a polutant and any "bits" will sink.
Of course then you need to procure many gallons of hydroflouric acid and a boat... which will be transactions that can be traced back to you...
The police it seems are quite clever at finding murderers