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I have the twin to your machine. Just got the bobbins for it from Sew-Classic.Com. They are the spindle type. Didn't have any trouble winding them. Muv would have approved. I refinished the bentwood case and it wasn't hard. I used stripper, let it dry and used mahogany stain. Then comes the best part. Home Depot has brush-on lacquer. It smoothes out and looks like spray-on without all the mess. If a second coat is needed, please wait at least 24 hours so the coat doesn't "slip". I steel wooled between coats and added a new Singer case decal obtained on the internet under "Singer Decals". Two down and three to go. Have fun.