Just to be clear: you're asking for this to be done for free ?
I don't hink he realized how much skillled work this might entail (depending on the room-loudspeakers etc).
It is not a matter of "plugging in some numbers" and getting a result.
At least a partial room has to be built-loudspeakers positioned (we are assuming that the current loudspeakers are proper for the room) and then "played around with" to get the best coverage.
Depending on the particulars-this could take a day or more-or a lot more.
If the loudspeakers do no provide the correct coverage-then this is quite a bit harder and lots of decisions have to be made.
There is lots of free information that is shared on the internet forums-but specific jobs that people charge $150/hr and up for, are not usually done for free.
And then who is responsible if the results in the room are not what was expected? The guy who gave out the free advice?
This is a job best left up to somebody who is paid for the result and will be responsible for said result.