Gary_in_NJ wrote on 12/28/16 at 19:22:32:LTZ and DR-z use the same engine. The Kawasaki KLX400 is the exact same bike as the Suzuki DR-z400. The Kawasaki is made by Suzuki. The KLX is a real oddball...and that's why I'll probably pick one of those up - there's no love for the KLX.
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I saw that bike and looked into it a bit. You probably want an S (street) model with the steal tank and instrument panel. The E (enduro or electric start) model isn't street legal without modifications and you'll have to get state approval or inspection to get it titled as such. The S has additional wiring and relays that I think you would want. The straight up 400 is a kick start and not street legal.
The pre-2002 E models had better forks than the S. Starting in 2002 the S got the same forks as the E. I would probably get a 2002 or newer S, though I hear the E has a more responsive carb.
Also, I was looking into a Suzuki Van Van tank. Not really sure if they will work or not and they aren't common in the US. Just an idea.