I feel rather certain that answers can be found for all your
questions, but it is unlikely that Researchers will try for the price.
You might read the FAQs on pricing.
Although your questions all seem serious, there is a tendency to
ignore questions that only show the minimum price, since experience
has shown that they often are not serious. As said, yours very well
may be, but the price is not.
I chose to comment on this question of yours because it raises another problem:
what do you mean by "major ..."?
To satisfactorily answer the question, a Researcher would have to
define the term him/herself. Often this does not agree with the
asker's definition and results in clarifications back and forth. That
can increase the time spent on the question beyond what a
significantly higher price would justify.
This is just a free comment, hoping to be of help.
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