We also have some radflo’s that might work as well that are a bit longer. Although that would depend on how heavy your buggy is.
Those are the ones installed in the car in the pictures.
You could always lengthen the drive axles. Cut axle in half, mill half of the end off to make a “D” shape, do the same to the other one. Then make a piece to go in the center that has the same “D” shape on each end, and is the same diameter as the axle. Sleeve over it with some tube that you opened the inner diameter up to match the outer of the axles to hold it all straight. That’s what we did and we make tons of torque in first gear.