Coding ain't that difficult. You do need a lot of time, attention and patience with it. But it isn't difficult. It's just a matter of changing values in the game files editable with Notepad. The thing is that not many people are willing to devote so much of their spare time to that, that is why coders are rare on the employment market, to say so. Anyways, I hope you guys will finish this in the end, especially if you say that the units are done. If you are willing to take working on the mod in the summer into consideration you should be able to release a beta in autumn, if only coding is what truly is left to do. Good luck!