I just had a look at a Komet build thread and I don't think so. The Komet appears to have a straight, or slightly swept back trailing edge, the fuse seems deeper compared to the length and the fin and horizontal stab is different.
The Fin and Stab on that first plane is a real quandary, there just don't appear to be any pattern ships that used a single elevator piece. The vast majority of designs use a single rudder and split elevator. The "F-8" has a single elevator and looks like a Sig Kobra and Cougar but isn't.
Thank you for your leads.