Can I ask a model Trolley bus Question.

[Londontram]

Ok I know it's not railway but it's sort of on the fringe of LT modelling. 

 Simple question I want to motorise two or three of the Corgi Q1 trolley buses using a Faller style steering set up but powered off the overhead but I've got stuck at the first hurdle.

 

 Does any one know how to take the Corgi Q1 model apart I've drilled out the rivet under the rear platform but it won't budge, I can see looking through the glazing two chrome pins running top to bottom but can see no sign on the base plate or roof to suggest how/if they help hold it together.

 

 So sorry if it's a bit off topic but just wondering being LT someone might have come across this before.

  Thanks Steve

[Paul H Vigor]

 

Doesn't show how it was done, but confirms that such conversion are possible!