I need replacements for 4 sliding Screen doors purchased in 2008. Need 8 rollers and 4 handles

I hope you can help. I have searched the internet for days. The doors are in perfect working condition. The screens will be re-screened, and the frames are in good condition. The rollers are all plastic except for the wheel and have broken away (brittle) from the rod that held them. The handles are cracked (brittle also). I'm hoping I won't have to get a full replacement screen. If it is more cost-effective and feasible, please let me know the price of a screen replacement. We are located in Prescott, AZ. Johnny Walker did the initial installation in 2008.Looking forward to hearing from you. Ted Leonard (and Sondra) at email: sondra_scerca@yahoo.com