These parts for the Wardog go along with jdteixeira's Fully posable Wardog Titanic Robot and DFCOFFEY Mars Pattern Style body, feet and head for Wardog Titan to resemble the Mars Pattern version of the original model that inspired it.
There should be minimal support required and the details can be printed straight up for beter detail and less cleaning.
The armour plate should fit the other parts that are on Thingiverse quite well, and if not, we are all hobbyist by nature, should not be that hard to make it fit.
https://www.youtube.com/watch?v=P_DikMnc7K0&t=1s