One of the sewing machine repairman from NJ says it is okay to use Windex on a soft cloth to clean up machines. Charlee favors oil and a tee shirt type fabric. I wouldn't use paper towels if you can find cloth.
One repairman uses Q tips for cleaning internals. I wouldn't use soap and water because water is the machine's enemy. Soap can be harsh and corrosive too. Be gentle. This machine can be a real beauty. Fred from Texas says to use a good carnuba wax on the bed to make it slick to aid moving fabric. I used a product called Back to Black, you can get at the auto supply shop. Sew-Classic.com has everything from bobbins to cords and a good instruction on their site. This machine will be so great when you finish it. Can't wait to see the pictures.