If it's not repaired and not repainted from any place then it's a good buy in between 11,75,000-12,00,000. Taking into consideration that it has alloy rims and Tv/Navigation. It's a X package by the way, but you've mentioned it has side skirts. Please post pictures if you can so we could get a better idea on what package it exactly is.
Yes, the ground clearance of the Belta is low like majority of other JDM vehicles. Well, most people here install shock spacers in order to raise the ground clearance. But personally I won't suggest you get shock spacers, get 15'' inch tires the ground clearance will increase by about an inch or so. Another way to overcome huge speedbreakers is to diagonally cross the speedbreakers, by crossing them diagonally your cars under carriage won't hit them.