After doing many, many delivers over many, many years I have some thoughts concerning this topic. . . . . . .
Just a rule of life, I don't want a cheap doctor, or a cheap lawyer, or if it is my boat a cheap delivery skipper.
I also have some thoughts on the topic.
I note that the OP claims many references and an extensive resume so my following comments are not relative to him, just a general interest.
Most boat owners that I have met ask the question "how many deliveires have you done?" Not "How many voyages on your own boat have you done?".
So now that you have that many deliveries, you are able to use them to offer up a really worthwhile resume and get the jobs easier than a "free" or "cheap" delivery skipper. Because people trust you. Not because of who you are or what you are. Because of your resume.
A resume rarely starts by a "new" skipper quoting top dollar. Sometimes one has to do things to make your offer attractive. You may have 50000 miles under your belt skippering your own boat but that isn't necessarily going to help you get the job. Sometimes you have to offer a special deal, like for free.
And with the greatest of respect for your qualifications (really, because I only have a lowly Yachtmaster Offshore, zip tons) I just love the qualification "Master of Oceans". Is that really a description of a qualification?