@benbacardi To motorize the train, I'd recommend Power Functions #88000, #88002, #8884, and #8879. All in stock at Lego.com this morning. The Powered Up battery box appears to have a blue-tooth receiv

You want #8879, #8884, #88000 and #88002. You don't need anything else. You can buy them individually, as a set or try to pick up a bargain used or new earlier train set with them included such as #60

#8884 - IR Receiver £11.50

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If it is creator sets like the fairground sets then he will want m motors and a battery box. He may also want an ir receiver and ir remote control. 

Basically, you need #8879, #8884, #88002 and #88000. You can use #8878 instead of #88000, but you'd then also need #8887 as well. Both #8878 and #8887 are quite expensive, so for home use you're proba

IR RX(#8884)

Used 10219, Maersk Train, with power functions:

It seems this thing comes in version 1 and version 2.

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