Right, time to get to work.
The order from Ramshackle arrived - with some free bits too, thank you Mr Curtis.

It's going to be a stretch limousine with 8 wheels, quite armoured and a bit battleworn too.
I opted for a few choice bits to make my life as a builder of limousines for Genestealer Cults easier, although not straightforward; so I got the front part as one single piece; a chassis; mud guards; and wheels. This will leave me with a lot of bodywork to build up as it looks like a truck with an undersize cab so far.
Here are the bits (the exhaust pipes were the gratis bit, along with some others - very useful!). I'm not showing all the wheels and mudguards here of course.

And here's how they'll go together, although I'm sure it's fairly obvious:

Next step will be cleaning them up from flash and starting the assembly. And then I'll need to see how to build up the long cabin for my cultists.