Snow Blowers

I bought 8 Poulan PR621 Single stage snowblowers and I can't get an answer on delivery dates, avaiablility and pricing on the rubber paddles part #435302 and the scraper part# 435535. These are essential parts that will wear out so I don't understand why these are not in stock. If this blower is to compete with the Toros that are used commercially these parts must be in stock and readily available. When these wear out the snow can't wait. Please get more information. THANKS!!