No need for smartarse comments. The OP asks a perfectly reasonable question.
Answer
If you are outside controlled airspace, yes of course you can nominate a higher missed approach altitude.
In fact, if you are number one in the approach sequence, with another aircraft following, it makes sense to select a higher altitude, so that in the event you both miss out the following aircraft won't run up your clacker.
All this assumes that you are communicating your intentions clearly, and the other aircraft acknowledges.