It's either a Limited or Limited Edition depending on the year. And since I can't see the front I will let someone who is more of a Liberty expert decide.
Body colored grille so SE if it's a 2008-2009 and SXT if it's a 2010. I think Chrysler just likes messing with us which is why they change trim levels around lol.
Yes, it has the original front end. 1997-2002 spans the model year range of the UN93.
This particular one has the 1997 to 1998 front grille trim, grill work (which houses the Ford emblem), front bumper, valance, and spoiler.
For the 1999 model year, a mid-life cycle cosmetic facelift and was carried out sporting revised grille trim design which dropped further in the center under the grille work, grille work, front bumper, valance (with integrated fog lamps), and spoiler.