I think it is great that you are going to have it all set up way before you make the animal purchase. That is fantastic. I also think what you are not considering, and what most people fear for you snakes sake is... that a unregulated uth that may be at the perfect temp now can, and chances are good they will fail at some point. The fact that you live in Canada and I live in Florida mostly means your snake will probably stay on that uth more than mine. Let's say you purchase the snake and all is well. Months or a year, maybe even 3 from now, about the time you go to sleep your uth goes haywire and runs up to 110-120 (f). You will find yourself with a slow cooked/burned snake that may not be able breed if it does live. Then when you ask, "What do I do about a belly burn?". Most of the people you ask will say..."Start by getting a good t-stat"... I hope this explains the reaction you are hearing from most now, and that you seriously take what you have been told by the experiences that have been shared to you. Everyone here wants you to enjoy the hobby and have a snake that lives a long happy life.