The tops before 2001 were a lot nosier than the 2001 - 2002 "sailcloth" tops.
The 01-02 tops are 4 ply material. In '03 they were still sailcloth but went to 3 ply.
Also the 03 and up had darkened back and rear windows while 02 and earlier were clear.
It may be a good deal price wise but an 03 or later top would be much superior to any earlier top - IMHO