Breadboards are annoying for in-the-field use. The wires are sticking everywhere and the whole construction is just not rigid enough. On the other hand, I don't think the design is ready yet for making it on a custom PCB. What do you do? Perfboard. Specifically a ProtoShield v.5 for Arduino Uno.
The end result turned out very nicely compared to the previous prototype. About 3 times more compact. This prototype version also includes a car battery discharge protection circuit and it works beautifully.
One takeaway from this build is that if you desolder female headers from a board, they are likely to get destroyed in the process.
If you want to see more photos of the build or if you are looking to build a Fochica Shield on a ProtoShield take a look at the instructions in the Fochica Wiki.