Sorry for all the late response, but looks like Kread-Ex answered pretty much everything for you. Yes, the script is still in Beta format and I haven't worked on it in quite some time. There is a slight issue now that I have no idea what I was doing before I stopped (I forgot where I left off basically).
As for checking the status of equips, there are three different options after accessing the equip level scene. There is "equipped", "weapons" & "armors". Equipped would show you the status of equips that are equipped. These menus only show equips that can level. You can easily spot the equips that can level by the color shades in the menu (unless that was implemented in the unreleased version I was working on).
I am going to create new menu scenes to better suit this script. I did find a partial script that I must have started working on in October for a new item scene, so maybe that's where I left off...
The Sell Item overhaul and Buy Item add-on are not modified to support the extended menu features of this script. All it will show is the equips level. I do not believe I modified anything to affect selling/buying price based on level.
As I've said in a previous post, I have not given up on updating the script. I have very little time to work on anything these days. Usually I'd have more time than I know what to do with around this time of year
The time issue is actually more that I am not home at nights any more and that is when I do any hobby activities like working on scripts.
Also, thanks for the battle test bug report! I never use battle test, so I would not have spotted this error
And, thank you Kread-Ex for answering all the questions and providing a simple fix to the battle test bug.