I am looking to purchase a used tacktick Race Master unit in either working or broken condition. Specifically, I am looking for an "old" style White Race Master or Speed Master unit that works or would be available for spare parts. I need the solar panel: Sanyo AM-5D01 Solar Cell (100 x 18 mm) that charges the unit. I would also consider purchasing a newer, working T070 model, if anyone has one for sale for a good price. Thank you!