What's the asking price? Price should be between $9-$11K, depending on add-ons. Trade-in on a 1999 with over 50K miles will bring you around $5,000 just because dealers will not get emotional over the VX and they want to make a bit of profit....
I would not pay more than $10K...I almost bought a 1999 with 28,000 miles for $9,000 in Florida...I decided to wait and got a pristine 2000 foxfire with 50K miles for $9,000. I was really looking for a 00-01 proton yellow, but none was available for under $13k at that time.
But if you really like it...go for it!
My $0.02. Good luck!