That's the beauty of BBQ. Make it your own with what you have to work with. You can add a charcoal basket to the firebox and use the minion method for burning and will help with keeping a steady temp. All it takes is practice, practice, practice!
My arsenal, Stumps Clone, Two Modified offsets, open pit with grate and rotisserie,UDS, and a free to me Weber One Touch Silver 18.5" kettle