Base Kit: ICM 1/48 He 111Z-1 Zwilling
Scale Aircraft Conversions specializes in white metal replacement parts. Its line of replacement landing gear has been expanded to include a set for the ICM 1/48 He 111Z-1 Zwilling.
The set is including a total 20 parts covering the main landing gear struts, fork and tail wheel. I am not 100% sure, but most likely these parts can be used with any of the ICM (single fuselage) He 111.
These parts are drop-in replacements for the plastic parts. To complete the landing gear, there is an extra plastic part that needs to be used. That part (c-10 from the instructions) does not carry weight; hence it makes sense to not replace that plastic part with white metal.
Considering the size -and weight- of the He 111Z-1 Zwilling, investing on a sturdy landing gear is likely to be a good idea. In addition, when using white metal landing gear, you can always 'tweak' the landing gear strut for an improved alignment of the parts, which again in a large model airplane is an extra advantage.