John, Sorry I missed this the first time around. If I didn't have my oven and I didn't want to spend that much, I would be looking very hard at the MV Forni for a complete oven and the FGM if I wanted a modular oven.
This was basically what my decision came down to. Both great ovens. I went FGM for ease of installation and it about $4k less for a similar sized oven. Not many talk of this, but I like the versatility of the FGM too with the larger door (for the tall model) and the insulated inner door and ability to close the damper for smoking food. I know I would have been happy with the Marra Forni too though.