It is indeed cheaper to make it yourself, but I wanna recommend an idea to you, if you don't mind.
Marf, I have a number of friends who decided to make every part of their fursuit by themselves EXCEPT for the head, which they had commissioned. The fursuit body, hands, feet, and tail are all MUCH simpler and easier to make than the head, which takes a LOT of practice and effort (and money!) to make it look "sort of" how you want it. You could always complete your fursuit this way, and then practice making a head by yourself at your own leisure, without having to worry about completing it quickly to have your entire suit finished and ready =3
I didn't take this route with my fursuit; it was entirely commissioned. But it's totally a good idea, and I know my friends who have done it this way are happy with their choice.