Money doesn't have to be replaced in can be scrapped all together, production for profit can be replaced by production for needs. All access to goods can be free and involve no transaction.
Who decides what is a "need" and what is a "want"? How would producers decide how much and what to produce? How would distribution work in PRACTICAL terms?
Be specific please. Use examples, etc. Theoretical verbiage not acceptable. ;-)
Do you believe everything could be free? There is no regulation in that other than the incentives for people to produce goods which would regulate the supply? Sporadic at worst I'd imagine? Would that mean more or less conflict?