I'm not sure how much experience with welding/fabrication you have but this is quite a task to do this.
If you can weld/fabricate the hardest part will be finding the parts. Im not sure how common syncro's are in SOuth Africa but you can use the syncro out of the mk2/3 passat if you cant find a jetta or golf donor.
but you need to cut out the exhaust tunnel and raise it to make room for the axle to travel the length of the car while still having clearance for the exhaust.
and also you need to weld in the rear crossmember which the rear differential and axles attach to obviously.




