Piper Turboprop Malibu or Matrix Charter needed - can anyone help?

I have been asked to look into chartering a Piper Turboprop Malibu or Matrix for a flight from London to Southern Italy (Ostuni). ( 6 passengers with a  customs stop in northern Italy).

I have found lots of charter companies but am struggling to locate any that charter a Piper.
Is anyone able to give any advice on any companies charter these models or a private owner to rent from and then charter a pilot?   I would be very grateful for any help you can give me as struggling with this one.  Thank you so much in advance.

If you could email me on rachelemilyreynolds@gmail.com or call on 07811 484 558that would be amazing.

Thank you.

Best wishes

Rachel