Using ImpEx is a relatively easy task. The manual even details how to use it. You could do it yourself and save a lot of bucks

, plus get some experience. The current supported version of DCForum is 1.27.
As to answer your question, no one can assure you that a coder is readily available. We don't employ or "dispatch" the coders willing to take on jobs, they do of their own free will. Therefore, we cannot guarantee anything, you see.