The B200 was quite well covered by Henry, although some years ago, but he never did a tip tank version.
As the source code is not available to modify you are relying on somebody starting from scratch to build another B200 series. Without ruling it out, here, the chances are remote, especially as it basically a civil aircraft. There would appear to be little need to do it.
John did make a B200 based RC-12X recently but that was for specific military needs.
Steve _______________________________________________________ Quid Si Coelum Ruat _______________________________________________________