CDG to Disney via Paris options

Hey everyone Landing at CDG on Friday at 11.30am staying at one of the Disney hotels…….. 2 day park access Saturday and Sunday. Have spare time on Friday after landing and wishing to see Paris. Am I best getting the TGV train direct to the Disney area at Chessey, dumping my luggage at the hotel then getting the RER back into Paris, or going from CDG into central Paris first(with luggage) then the RER to Chessey?