A fee estimator is useful, but I didn't find a nice one.
I don't like any of the ones I know, because all of them overestimate fees. I will certainly take a look if I can find a good alternative

I totally agree with you and that's the basic reason why I asked you to add one. Maybe you have better luck than me to find something.

@OP: Sorry for posting about something that's "irrelevant" to your thread.