I was out working on my car last night. Headlights are one of the last things to do, and I'm at a bit of a crossroads. If Songman/Fiero Performance ever makes the pop-ups available with the 90mm Hellas, I'll use something like that. Otherwise, a fixed headlight system using these would look good. As others have pointed out, getting a light to fit in the opening and remain flush will be a challenge.
My problem is that I want a true headlight up there and not a driving light. This requirement limits what you can put up there. If you want something that will be flush, there are few options (I think only the style of light used on the Geo Storm, 4th Gen Camaro, and early 90's Grand Prix will work and still allow a flush configuration). Still, these are a wee bit too wide to fit properly in the opening left behind when the doors, lights, motors, etc are removed.
Anyways, back to the Hellas......
I think that a twin set up with the 90 mm Hellas would look great!!! But -- they will not fit flush in the opening. What might look decent is if they sat as low as possible but did "bump" above the line of the hood a bit. A clear vacuum formed cover could then be made that covered the lights and was painted black on the inside rear portion to hide the ugliness of the backside of the lights.
If you are talking with Norm @ NormsFiberglass -- can they do vacuum forming on clear plastic? From the looks of their one piece front end, it looks like they can.......
Keep in mind that the lights are ~$225 or so, and the fiberglass buckets and vac formed covers probably won't be free, so this should be a $500 or more (probably more) upgrade. For reference, similar upgrades for the Vette or late model Firebird are ~$1,000.
There are those of us that would pay quality dollars for a quality product. Doesn't make it any easier for someone to step up and say that they'll start making something like this.......
Fort Worth, TX
198? Fiero GT/V8
1973 TVR 2500M