A female member of SBN (madkat) haves a Monster 620 and the bike had to be lowered, so it isn't a very low bike...
For small-ish people, nothing can beat a cruiser, and the one with the lowest seat height is the Rebel 250. That bike is also DIRT CHEAP to run and haves a legendary bulletproof engine.
I wouldn't look at the Eliminator 125, being a 125 I can tell you it is going to be extremely boring, and the only thing that "eliminator" will "eliminate" is fun of riding it.
Basically al cruisers have low seats, but they are also extremely heavy, so a small cruiser would be perfect.
If you aren't a "must be japanese" kind of guy, take a look at Hyosung's GV250 Classic (Alpha Sports), a little bit more expensive than the Japanese 250 cruisers, but a lot more power (a little bit shy of the Ninja 250, the most powerfull 250 cruiser out there), and after all, it is a Suzuki engineered bike.
I've seen groups dedicated to that bike and people are extremely happy with them, reliability and quality is excelent, and no other 250 cruiser can keep up with them
Alpha Sports