An experienced project manager has successfully managed many new office build$-$outs for their East Coast company. The company just announced that they will be expanding operations to the Midwest, and a lease has been signed for $5,000$ square feet of space in Cincinnati. The new office has to be up and running in $3$ months, and leadership has asked for a construction estimate by the end of the day. How can the project manager come up with a credible estimate for the new space quickly?