I think you will find most of us are only opinionated to the point that you don't get screwed and know what you are getting and what limitations it may have. This is really a VERY helpful and supportive group.
From what you have said so far there are lots of options:
-Many makers now offer small pre finished ovens that may be your best option. FGM and Forno Bravo are two big players in that market.
-If you want something a little bigger a kit oven is pretty simple to put together and finish. Again FGM would be a popular choice, but there are lots of others.
-The best bang for your buck would probably be a custom built brick oven. A low mass low dome barrel vault oven would be much easier to build then a dome, and would still give great results.
I think those three options are a good jumping off point to start the conversation.