would anyone know how to make agents traffic mod cars have a manual gearbox?

ive been playing around with my kia picanto first gen, found this mod thanks to you people already, but its only in automatic, and i tried goofing around in files to edit it into a manual but no matter what i cant get it to work. best ive gotten it to do is have the m1 m2 gears, but those dont work with my clutch or H-shifter. would anyone be smart enough of have any idea where i could get a manual gearbox for this car? and i thought about mesh swapping the car with the 2022 mpi attraction kia someone made but no dice because im not smart enough for that either haha