FYI . . . I got my LT4 in April for $21.5K with 24K Miles. It has all the options and the Z51 suspension package. It was taken care of very well by the previous owner. I feel it was a fair deal since I was able to get a pretty good trade in value on 96 Z28.
If you have any more question feel free to continue this thread or send an e-mail.
Yes - I like the Z51 suspension, it's a bit firmer which handles very well cornering but yet is not to bone jarring for normal crusing. According to what I've read there were only 1,869 produce in 1996 with this option.