The things is we really don't need that many more things to design the Mk1 LCD so it isn't exactly some far-future hypothetical design. If we have Rearden start to design the combat software this turn then we can have Bailey start the Extended Battery next turn. Once both of those are done we would have everything we need to start designing and producing the drones.
The reason I'm so focused on creating the drones is twofold:
1. I don't think we will manage to finish an effective wall before night time. We can use the first batch of drones for defense until we actually finish the wall. And as we've just seen, the bots we bought at the start aren't exactly reliable, I don't want them malfunctioning on us in the middle of combat.
2. It gives us something to start selling. This is important. We could get a big headstart if instead of having to design better mining and manufacturing facilities we could simply buy them. We could probably even buy their blueprints too.
It's more effective to trade for things that other people specialize in producing than climbing the tech tree to produce them ourselves! We've seen this with our purchase of ore from Rod, how long do you think it would have taken us to start setting up a mining operation to get all this ore? Well here it is, right now, for us to use as a kickstart to our other projects.
Sidenote: The reason it shouldn't have hands is because it can't be upgraded as easily. I know that sounds counter-intuitive but there are good reasons.
If we design a combat bot with hands instead of built-in guns then it arms itself by carrying a weapon. This means that if we make an Upgraded Laser or reverse engineer E-mag weapons we could simply assign it a different gun to carry into combat.
The problem is we are trying to sell these, and if our clients want to upgrade their weaponry they can simply buy a better gun and give it to the basic combat bots. If the weaponry is integrated they will have to come to us to buy a whole new upgraded drone which costs more than just a weapon. If we want to upgrade we can simply start producing the newer drones and sell all our stock of the old ones.