Hey i am not hear to take your money ^^. Just wanna tell you, that those plugins are not enough. You would be the first server running with 4 custom plugins, and it is just simple drag and drop or editting txt files to setup zombie and human classes.
csgo/addons/sourcemod/configs/zr/playerclasses.txt there you go simple txt file.
But if you have problems with that, you will run into trouble soon. Cause you have to make a lot of little adjustments and i dont think you want to pay for every little adjustment. Just a advise, we life in a free world.
csgo/addons/sourcemod/configs/zr/weapons.txt
Restricting smoke grenades
"Smokegrenade"
{
// General