Here are some measurements in the chapel!
The main one you’re probably looking for is the aisle, so you can order a runner.
The aisle is 42’ from the very back to the steps. The aisle is 6’8” wide.
I do not recommend getting a runner that goes up the steps as that is very slippery!
Here is a pdf with 3 pages of measurements: the chapel overall, the stage, and the pew end.
Here are photos of those same pages: