I am trying to buy this striping kit 114-8545 and i looked up the parts on superxpower.com for my new toro 50" mower. Imtrying to figure out the cost and it seems a little high $ 7.56 for 10 screwx = $ 75.60 that seems like alot of money for screws? Also flat washers $ 5.08 a piece ? i have been emailing them but get no response the hardware seems to cost more than the wiper itself . This is a new mower model # 74370 and just want to know if anyone can help please !!!!!!!!