I am after a word that is not too unknown and that can convey the meaning of "desiredly? Here "desiredly" is only used to make a point; I did some search and am under the impression that there is no such a word as "desiredly". So I would like to have a word that could be a suitable proxy for that.
An example would be:
If you finish that sufficiently soon, then you will get paid "desiredly" soon.
(Here "desiredly" is to describe how soon this "you" specified ex ante; it is to be understood as "as desired".)
Just in case I have not made myself clear; the situation is like this: Suppose I employ someone and set the rule "Write down how long after you finished this job you would like to get paid; then I will set the time duration for you to finish it". It is in this sense I am trying to say "if you finish the job sufficiently soon, then you will get paid "desiredly" soon".