Kalt Bell Huey Cobra 500 Information required

I having recently discovered this little gem.

As you will see by the images this is a real beauty.

It is possibly the only one in existence as only a handful were made and the rest are apparently all totalled.

We are trying to trace any others... Any ideas/suggestions?

The original engine was replaced with an Irvine unit due to being very underpowered. The Irvine unit has never been "run in".

Having spoken to the original owner it has also never flown!! Replaced the engine unit as previously mentioned throttled her up didn't know what to do next and then shut her down and has subsequently never been used since!!

The damage to the canopy was done whilst in storage and "hastily" repaired approx 20 years ago.