Utility to edit item text

Hello all,

I'm an old BE fan just getting back into the game, and I discovered for the first time all the mod potential.
Now specifically, what i'm doing is importing the Siege of DragonSpear items into BG2ee. I have successfully imported them with 'NearInfinity' and they work, but what I need to do now is edit just the text (unidentified/identified name and description), without changing existing strings of game content. Currently their effects and pictures are correct, but their text is whatever BG2ee has in the target string, instead of what SoDS had in the same string number.

What is the best program to do this with? I looked around at quite a few things, and it seems that WEIDU can allow this, but the walkthrough on how to install it was beyond my programming knowledge. I found an old 2009 TEamBG 'Item Override Editor v.1.3.9 ' and 'Item Text Maker v.1.0.1', but the download link was dead. Basically, I just want to add text to the existing new items in the 'override' folder, perhaps by creating new strings of description to point them at? Or perhaps by some other trick.

I'm new to this sort of program, though i'm familiar with computers (IT but not a programmer).

Any help appreciated.