Shame about Nobles which surprises me greatly.
They are very approachable and I have found their after sale to be exceptional.
Pay them a visit and speak face to face with David Noble (Dealer Principle NHPC) explaining your concerns (past and present) and tell him that I sent you.
I don't know what your previous issues were, however, David will give you the reassurances that you need so that you are comfortable leaving your pride and joy with them.
They will also fit parts that I supply, so there should also be substantial savings to be made there.
Let me know how it goes.
Alex.