hi tech cobra The most important thing is Beer, Coke Cola, and steaks.
They get the reward after the job is done. You may want to add bolts to the motor mounts if they are rubber. This will stop them from splitting under hard driving and still gives the frame isolation from the motor vibs. If the frame is painted you might want to tape and paper off the rest from burn spots when welding. A electric level will help with the perfect leveling of the mounts. This is up to you guys but some of the cobras have the motor sitting 1" to the right for balance of the car. I think you have the rest covered. Good luck, get a couple of pictures. I hoping you are going to have the car on jack stands, try and have the frame level as possible, this make the whole job easier. Rick L