Surely what you want to do is become qualified and advance to commanding these machines. If you are proactive with the company, and offer either a bond of some kind a salary sacrifice to pay for the rating then everyone wins. Your first OPC can be done as a part of your type rating test, and then you're off to the races.
Look at the rates you can charge for twin work and do a quick cashflow calculation to see how long it would take to pay for itself. Getting the first 500 hours of ME time is THE hardest trick in this business, and once you've done that you can earn a good living. You my friend appear to be in the most fortunate situation of having a route through the maze to the cheese. Unless you're older to the point where you'll never get the money back, the earlier you start the more your lifetime earnings will potentially be.
In the meantime, if you have a legally sound waiver (take advice for the wording) signed by the operator that you are only acting in a non-piloting capacity then there's nowhere for for the regulators or the insurers to go. If you're really paranoid you could ensure that you never wear bars and have a fireproof badge made for your shirt pocket that says your name with 'Pilot's assistant' or other some such underneath
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