I made 2 new ones. The front one over laps the ones on the floor.
The rear one, I removed the small parts on the floor panels and then inserted a new one.
With regard to floor panels being different height to the tunnel floor section, I wouldn't worry. Mine are a lapped joint & all I will do is brush some seam sealer over the joints and then stone chip the underneath. Its different if you are trying to achieve a concourse finish and therefore disguise any repairs. But lets face it, if you are fitting a 650 engine then its not going to be original. No one will worry about the floor seams if the floor is new, no rust and appears to have been replaced properly.
The rear one, I removed the small parts on the floor panels and then inserted a new one.
With regard to floor panels being different height to the tunnel floor section, I wouldn't worry. Mine are a lapped joint & all I will do is brush some seam sealer over the joints and then stone chip the underneath. Its different if you are trying to achieve a concourse finish and therefore disguise any repairs. But lets face it, if you are fitting a 650 engine then its not going to be original. No one will worry about the floor seams if the floor is new, no rust and appears to have been replaced properly.