Quote Originally Posted by dogram View Post
The fire box is going to be on the end I have not seen one built this way
That's what I figured. I don't believe it will work with the the design as you are describing.
The air intake and exhaust for the grill would have to be separate from the the fire box for the smoker. Regulating temps from end to end for smoking or grilling would be a nightmare. You could not smoke and grill at the same time.
You would be better off with that tank to build a nice smoker, either a regular offset or a reverse flow.
Then build or buy a dedicated grill like a Weber ranch grill.

JMHO-YMMV