Ndola steps to the 1600m journey of the Guineas for the first time on Saturday.
Hayes said he does not believe the trip will pose a problem, having won over 1400m in the spring and then finishing second at that trip last time out.
Ndola was being prepared for a tilt at the Caulfield Guineas (1600m) in the spring, but the stable felt he was not mature enough at that time for the race.
"He's a big, lengthy, strong colt and he's been targeted at this race," Hayes said.
"He had a little set-back early, but we loved the way him improved from his first-up run into his second-up run and is right back on track.
"He had immaturity problems in the spring, and he benefitted from a good break.
"We did the right thing by him, so hopefully he can repay us, and we think getting back on a firm track on Saturday will suit him.
"He's got the ability to do it and off the ratings that looks the form race from his last start.
"We're confident that he'll run really well."