Sad.
This has turned into a "my dicks bigger than your dick" thread...
notmyC150v2:
QF, Skippers, NatJet, Alliance, Network, Smackair/Jetshaft, QRA, Rex, Airnorth, Transair all do such work, or have done in the past... with various frames (Ozjet possibly soon).
Give them a call and I'm sure they would all love to submit a quote.
Happy landings