I was thinking of just using the frame for the tent mostly, keep the doors wide open but I have not yet decided. I just remember finding the tent kind of practical. 

Ok, I think got you, use the 600w but not invest anymore in it. I guess it works fine if I just keep it a little further away from the plant?

It is weeks if not months away anyway, still havent germinated the seeds yet, but I need to plan ahead since everything I need will be shipped by mail.