I'm refurbishing a 1965 Cub 50 C100 that I bought a couple of months ago. Only 3300 miles on the odometer, and just needs 'freshening up' (new front fender, some turn signal lenses, etc). Also, looking for the flexible black plastic lower engine shield. The one on my bike is all torn up. Can't even find a part number for it. Does any know where this part can be purchased?? Thanks.