My first smoker

Hi there, my name is Jiri, I am from the Czech Republic and I am in the process of making my first smoker. I am not sure which type will be better for me - the standard offset smoker, or the reverse flow offset smoker. What is the difference between these two? I have two barrels. 78,74x30,7 and 35,4x18,9. I am new here, so please help me :-). Greeting to all. Jiri