TC, to help get it going.
What about these two sets,
Light: EC145T2, Medium: AW139, Heavy: EC225
Light: AW109K2, Medium: EC155B, Heavy: AW189
Considerations include manoeuverability/responsiveness for confined area and rough terrain landings, litter access/egress, available power. 189 is a guess based on preliminary performance claims and the 155 I'm not sure about with regard to the extent of hot and high performance.
Not really my forte but there we are.