Good evening Gavlar, well, its close to morning for you. :-)
It would be helpful to know how much area you have to work with. You can build a brick smoker and a oven on a very small footprint. If my smoker were stand alone, it would have a foot print of about 6ft x 6ft. I am in the process of building a oven. When complete I'll be doing a rundown on the brick smoker page, but here is a picture of it almost complete. The foot print on the oven is 7ft x 7ft. Not a lot of area is needed to get both.
Looking at your drawing, by making it a little wider you can have a brick smoker.
When you get a chance check out the "brick smoker" page here at SMF. I do have a how to on brick smoker. If you can't find it, I'll be glad to get you a link. I am by no means an expert, but I do have a working knowledge of brickwork.
The oven I'm working on is built for the long haul. Its built to hold heat for making bread. No shortcuts on this build. I built if for high heat for awesome pizza and to hold heat for bread the next day. As stated, once complete I plan to give a how to on the brick smoker page.
It looks big, but it sit on a 7ft x 7ft slab.
If you have questions please ask. There are ton of folks here willing to help.
Here is a picture of the smoker. These two sit in a corner to each other. Hopefully next year a can finally build the deck area. The oven is built to where the deck will be, thats why its so high.
Its not quite that clean after 4 yrs of use.
If you have questions please ask.
Hope you have a great week-end!