Are those Si hfp still available if they are how much are they

 

Only through classifieds and ebay, and either very expensive or needing repairs (or both). Your best option is to find something else that you like and go with that option.

 

There were a number of the HFP parts Honda sold back in the day. They were are sold prepainted, and separately. They are long since discontinued.
- rear hatch upper spoiler
- rear bumper spoiler
​​​​​​- side skirts
- front bumper spoiler

I was fortunate to run across the rear bumper lip and side skirts, new in box, extremely rare!