I want to get the SCJP. I want to do it in Belgium and on a individual basis. I have this site:

But I only want to take the exam. No classcourses or something because it is too expensive. I just want to read the book and do the exam. Can I get the SCJP for just 140 euro? How to get information about where (only vilvoorde?) and when (everyday?) I can take the exam? I can't find this info on this website.
Also, how long does it take to take the exam?