I just won one off Ebay,as a UK GB fan,I’m so pleased to finally have one of these,I’m thinking of modifying/restoring my 2 Vintage RGB Ectomobiles into Ecto 1 (from GB1) & Ecto 1A (from GB2) so I might consider removing the electronics from the EGB one & using them for my GB1 model,can’t wait to receive it! 
I’d love to get a real hearse and transform it into the Ecto 1