Any recommendations on lubricating the rods, screws and sliders inside the machine?...
White lithium grease will do the trick, Praxis has one from WD40 (just make sure its not WD40 and it is white lithium grease )
Try sewing machine oil or take a look at Ballistol.nl. Use oil sparingly! There will be forming a little ring of dust and excess oil at the axis endpoints, wipe it with paper or cotton.