It doesn't look too bad. Going to be totally out of whack though, after (and if) you add a dropped pitman arm and trackbar bracket.
But you definitely have at least one custom mount for it. The frame end there at the crossmember is normally the same as the bracket on the draglink. Other than for the way it's mounted, it's shaped the same.
Early Broncos used two u-bolts to mount the draglink end, and two bolts to mount the frame end. For the F150 and then after '78 for the Broncos, both mounts were identical and they added a pad with two threaded holes to mount to the draglink.
Early draglinks had a brace/bracket/stop/thingy welded to them to keep the stabilizer bracket from walking along the rod.
Got a pic of your mount behind the driver's side end of the shock? Or now that it's off, just a shot of the bracket and the draglink?
Hopefully whoever welded on the frame-side bracket put it at the correct location.
Paul