I have run a Whisper Lowboy by NC Forge for 20 straight years. It is an amazingly good forge. I have several others, but it is my go-to forge.
I just gave my NC Knifemaker forge to my son-in-law, Steve. It is basically a taller version of the Lowboy with an end door. It belonged to Ron Frazier and who knows how many knives he made in it over the many years.
Dave asked about the Majestic, and it will definitely do the job ... just ask anyone from FIF.