Hmmmm... that Accept show is news to me. I thought they were hitting Texas in April but skipping the DFW area.
I live in DFW but haven't really seen a lot on the concert calendar during that time you will be here.
On March 4, at a venue called Trees (in the "Deep Ellum" district of Dallas), are Fair to Midland. Also on that bill are Scale the Summit. Not sure if that is to your liking or not but I post it as I have seen, on occasion, these two bands mentioned in the forum.
Other than that I haven't really uncovered much else of interest (in my opinion). Unfortunately, you are arriving just prior to some pretty good shows hitting the area.