Well, to overcome my novice knowledge and try to make the best possible decision, I have been reading the thread Scott123 referred me to, many other threads and various websites.
In reviewing my constraints, I decided I must have wheels (store the oven day to day against the garage wall, roll it out to the middle of the courtyard when using) and cannot go too big for both product availability reasons and space reasons.
It looks like three choices: a Roundboy oven, Forno Bravo Andiamo, or the FGM 700C from Bread Stone Ovens. The costs, including shipping and tax, are approximately 2500, 3500 and 4500. So, what to do?
From what I can tell (and please tell me if i am off), the Roundboy looks of reasonable dimensions of floor, height, door height, etc and certainly is the most cost effective. It does require assembly, but the assembly looks idiot proof (and I am an assembly idiot). But, given the price, etc., I am wondering about "if it is too good to be true, then it isn't"
The Andiamo looks like a great compromise of the various parameters, but in reading Scott 123's comments, the dome height may be too much?
And the FB 700C has a lower dome height so long as I do not get the raised version and may be the best design in size and quality.
I very much welcome comments from you guys with more expertise than me and with any experience with the ovens themselves to help me make the best decision.