On with Pack 4!
Stage 24 gives us an electrical panel.

Glue the floor and panel into the cabinet.

Glue the door handle in place with superglue.

I found the the door inner wouldn't fit as the square moulding was fouling on the magnet. A quick trim with a craft knife sorted this!

Then the door went together perfectly.

Glue the door in place and that completes this stage.

Stage 25 gives us the body midsection and water supply panel.

Fit the electrical panel just assembled into the body midsection.

Now add the water supply panel along with the emergency light, water valves and hand wheel.

Add the upper and lower sep and the support. These were all superglued in place, and all added simultaneously to ensure that the steps and support all lined up properly.

Then the side panel was added along with the road cone. (I jumped ahead in the instructions a little here, in case you're wondering why things are out of sequence.)

Add the details to the right water supply panel and fix this in place. Pay close attention to the supply elbow as it's possible to get this the wrong way round.

Add the side panel and step to complete the stage.

Stage 26 gives us the right outrigger.

Assemble the light and fix it to the outrigger.

Then the outrigger is screwed to the mid section with a couple of screws.

That's about half way through Pack 4. I'll finish the pack shortly.