Hi there, we are arriving from Germany at Gare du Nord at 4 p.m. on a Friday and need to get to Essarts-le-roi, south of Paris. I know we have to take metro from GDN to Montparnasse Bienvenue station and then get to Gare Montparnasse to take Transilien to Essarts-le-roi (direction Chartres). My question is: how should we get from the metro to the gare? We will each have a 20 kg rolling suitcase. I read that there WAS moving sidewalk and now . . . there is still one? or there isn't one? I don't mind paying for a taxi but would like to have an idea how much to expect to pay?