Not sure if you have had the hood off or not.
if so check the gap at the front to see how close it is. if it’s to close move the hood towards the back and then check to see how high it is to the fenders.
moving it back towards the windshield will lower it a bit but not as much as you need..
I repaired mine using aluminum flashing to make the form for the new floor. The fiberglass will not stick to the aluminum flashing. What i did is cut out the old floor and then i rivited the form in place. you will have to flare out the remaining fibre glass floor to get the new fiber glass...