You will need to remove the hood and the sticks and possibly the "sharks tooth" rail at the top of the windscreen (not all MOD had the separate rail).
Sides and Roof can then be fitted in the normal Series Land Rover way.
At the rear you will either need to find a "cat flap" top (getting expensive!) or remove the tailgate and fit the Station Wagon type rear door.
Worth fitting new rubber seals as you put it together.
HTH
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