I am interested in your offer and I live in South Florida. I have the following concern though: assuming that the kiln is not in working condition (due to the fact that it needs a new controller), how do I know that it will work after replacing the controller. The link to the kiln spec that you provided in your post has a link to the RTC-1000 controller, which costs $679.
If you foresee a solution, I am willing to work it out.
What do you have in mind as a price?