Oh, and regarding that descriptions question - you can add descriptions through a descriptions.csv file, either in your own mod directory (for public mods) or using the game's one (for private stuff). Here's the basic layout, and an example from my Positron (tagged as xpposi internally) mod:
"id","type","text1","text2","text3"
"xpposi_amy","SHIP","An experimental scout fighter, aimed at quickly capturing critical mission objectives, the Amy Fighter is a testament to Positron engine technology. A single tactical laser is however all that keeps enemies at bay.",
Just paste that into a text file, then change the name to descriptions.csv and edit it in Excel. It should be in your ..\Fractal Softworks\Starfarer\mods\*modname*\Data\Strings folder if your mod actually uses the mod system.
Keep in mind this is for ships. I'm not sure if items use the same format, but the game's files or the weapons mod files should be able to tell you what to do there.