Thank you for reporting all these typos.
Indeed, "Radar dish v1.4.0" is cheaper than "Radio tower v1.4.0". It seems there is a missing zero.
Regarding your suggestion, I didn't quite understand. Are you suggesting that it will show you how much it will generate on the next purchase? For example, 0.1 on x5, would equal 0.6 in the pop-up card that appears when hovering over a hardware?
Nothing seems to overlap regarding the effect viewer and research node.
I also didn't understand the missing dashes.
I checked all of them before this reply, but I didn't catch what you are trying to refer to.