Alfa Romeo Spider 1600 Junior (2nd generation) – Problems with the gearbox expansion

I would like to change the cranking at an Alfa Romeo Spider 1600 Junior, but I can’t get the gearbox out. I’ve already dismantled everything, tilted the gearbox, etc. But there’s always something on the sheet metal. There’s nothing in the workshop manual except “pull out”. But I can’t pull out straight, because then the switchboard is in the way and lowered, the gearbox is on. Is there any special trick to pull the gearbox out? I’m after 3h with two men with me The only thing I’d think of would be loosening the engine bearings and pushing the engine forward.