Thats what I suggested to him (talked with him for a few minutes) - either rebuild as a learning curve, or buy a running (or at least not scored) FC with electronic ignition (his had points) and put that on.
I wasn't sure about the belt pulley, as I have never worked on a 24, but it shouldn't have posed too many problems.
He seemed keen to have a go, hopefully its going alright.

Is there any difference between engines on regular Victa's and the 24, or is it an identical motor?