It wasn't my intent to imply that you should feel guilty or that your project isn't an accomplishment... let me try to put it another way.
My entire project is being built on the labor provided by other people.
I'm using the RMXP engine, developed by Entebrain.
I'm using probably two dozen individual scripts, mostly from this forum.
I'm using resources that other people have ripped or designed personally.
I have asked countless people for their time, feedback and help, which they have generously provided.
Will I be proud when my project is complete?
Yes.
I'm using these things as the fundamental building block of a project of my own design, and the end result will be very different from the source material.
From what I understand of the technical details of your project, this was not simply a copypasta + plug in to a few lines of scripting affair. You took an existing technology and adapted it for a different use. The only hypothetical reason I can think of for not being proud of such an accomplishment would be if you took someone else's work without credit and claimed it as your own because you made a minor revision.
That doesn't appear to be the case here, so why shouldn't you be proud?