Why not argue based on knowledge? Check out the Preface - quote the exact words for us. In it, the publisher clearly states that they used the Septuagint in their OT - so you are arguing against their own words. If you do not have a NKJV handy, then I will try to find mine in the box it is kept in and type up that portion. Don't quote Wickedpedia's made up entry - it is not like they have a clue about Bible versions - their entries are based only on what people have added to it. That certainly doesn't tell us what is in the Preface to the NKJV - which I would take over any Wickedpedia entry telling me otherwise.

If you want to read the NKJV, go to it - but don't try to tell us it is an updated KJV or based completely on the same texts when it is not. THAT is why we reject it. If it is not based on the same texts or contains differences in meaning, has passages added or subtracted, we don't want it.