What does the man say he’s doing right now?

W: Morgan, Mr. Cole from Modern Home Improvement just called about the upcoming project.(60)He wants to know when the engineering calculations will be finished, so he can order the construction supplies.
M:(59)I’m working on the calculations for that project right now. I should have them ready by tomorrow afternoon. Would you like me to return his call and let him know?
W:(61)Actually, he said he’ll be in an important meeting for the rest of the afternoon and it’s best to send him an email. I’ll give you the address.