Pk 50 s with phbl 24mm carb

hi , can you plz help , trying to fit a phbl 24 carb and reed valve kit , but having problems ,

1 there is not much room fot it to go in where the old carb was , any ideas how to make it fit without cutting frame

2/ my pk  throttle cable does'nt fit , there is no end on the throttle cable so how to fit it to the carb slide

3/ how do i fit my choke cable as the solder on the end of the cable is larger than the fitting in the choke ? will i need a choke conversion

any help or pictures would be great , many thanks reply soon