Yeah cat spray is not fun Cheetah will be getting done I had lilly done when she had her op to remove the pin from her set leg after she'd been on cage rest for breaking it.
Neutered cats (both genders) can spray, and sometimes do, but nothing like a tomcat! So, yeah, have him neutered around 6 months and he shouldn't ever start spraying.
I had my bella for two years before I found out it was a boy. Haha he was a Feral so I could never get near him. Now he is a big cuddle cat . He is called bell now.