First: thanks for being an inspiration for you and sorry for chiming in late for more advice on your project. But you seem to get it going on your own way and that is good !
Here are a few things I want to share about my (your) project you may want to take into consideration or take your own look at, please learn from my mistakes, take it or leave it
- Fiero's have a slight arrowshape /\ nose, the Honda is rounded. This on a Fiero may look like a little like it is 'smashed' in the center. At the time I thought it didn't matter but it did later. Its all in the details. For me this was the main reason it wasn't perfect enough to reproduce.
- I decided for a bigger 'mouth' section for front balance, sacrificing direct matching the front hood lines
- before taking a mold make sure everything is and looks right before making that mold and think you can correct it later. It will be more work.
- I think adding the stock fastback front lip is a great way to blend the nose to the stock Fiero lines
You should have kept this one, I think you will need an additional splitter anyway to blend the nose to the rest of the body and give it some 'balls'
I am sure I missed a lot to tell, feel free to shoot some questions if needed. Good luck with the project