60420 Construction Excavator set is undoubtedly their best City-themed excavator to date. Launched today and aimed at ages 8+, the set features over 600 pieces, with a huge posable boom arm, 360° slowing superstructure, and a pair of brick-built Technic tracks. It also wears Technic price-tag though, costing a very un-City-like $55 / £50.

Fortunately however, previous bloggee Marek Markiewicz (aka M_longer) has doubled 60420’s value-for-money by turning it into a 2-in-1 set, having somehow designed and published a superb bulldozer alternate complete with building instructions on the day of the set’s release.

There’s a working blade and rear ripper, plus a removable cab, and you can find all the images as well as the link the building instructions for Marek’s brilliant bulldozer B-Model via both Flickr and Bricksafe. Take a look via the links above to double your 60420’s potential.