A big thanks to the people who brought the 42042 to my attention! In the end I couldn't help myself and bought the 42042 as well. I even received the 42042 before the 42030 arrived. And I must say, although the 42030 looks impressive in terms of box size, motor count, fully RC and so forth, I will most definitely build the 42042 first. It surprised me.
To be honest, I did jump on the train and bought the 42030 as it's the older model, but having physically seen the 42043 in a brick-and-mortar store again, I do wonder if I hadn't been better off with the 42043; more parts, suspension, pneumatics and PF (though less) and both got RC. Got a few days left to decide whether to return itt or not. Some doubt.
But anyway, I am a very happy 42042 owner :-)