I rebuilt 60052 into a different train with different cargo and vehicles, using only parts from the original set (excluding extras). I'll share the instructions at some point, and maybe try another
LEGO Set 60052-1 Cargo Train (2014 City > Trains) | Rebrickable - Build with LEGO
Lego® TRAIN Railway 60052 Instructions ( TRAIN ONLY ) Set | eBay
60052 Alternative Build Instructions : r/LEGOtrains
LEGO CITY CARGO Train 60052 98% Complete Instructions Remote Control £83.11 - PicClick UK
Návod na stavbu 1 LEGO City 60052 Nákladní vlak - Zbozi.cz
LEGO MOC Dressed-up 60052 Cargo Train Engine by timeremembered | Rebrickable - Build with LEGO