Wow this is interesting. I hated how short my original 610 stand was, so I put an SM630 stand on my SM610...Haven't had a bit of trouble with it, and no more gas dumping out when I park after filling.
Stated making a lug and new stand.Couldn't get the tubing in a thin enough wall on the day,so went back and had a look at the drz400e stand.Without a centrestand it would bolt right on and clear, length is a little long,so using Ken's measurements i made a cut to the top where the tubing meets the lug on the outside and bent it out then re-welded.Next i wanted to use the husky spring,the drz one doesn't match up with the husky mount on the frame causing the spring to stretch.cut the spring mount off the drz stand and re-welded it in the husky location. Haven't shortened it yet but it seems to working out ok,might take a inch off later.The drz400sm has a shorter stand so that might be a better option.My bike had a rather loose hole on the frame with old husky bolt wobbling around in there.I took the drz bolt and turned it down just enough to snug up where it goes through on the frame mount.nice solid fit now.