1.1 4sp to Polo 8P 5speed woes!!!

Well, this was supposed to be a simple drop in a go…I've put in an AFH 1.4 motor with a 5 speed 8P gear box in my 1977 1.1 golf…the motor is all hooked up and fitted and running my only issue now is the connection between the gear stick and the gear box!!!!!

Having read several build threads on this and talked to lots of people …I know need a definitive answer to my question..
What do I need to connect my gear rod ( from the gear stick) to the gear box!!
The problem I have is the actual rod seems to short to connect the ball cage to the rod and allow it to fit over the ball of the gear box selector!! 

Is there any different in gear rod length on earlier cars? 
Which cage…which ball …which gear rod …please help!
I've got a selection of ball cages ..and two ball connectors


It's the only thing stopping the car going for MOT!!!!