Morning Everyone..Laughing

I am sewing a scalloped valance for a dining room window that is a total

142 inches wide. Even tho there is a 13 inch space between two windows, I want to make the valance go across.

My question is...since it is this wide, would it be best to make two separate valance or one that full size?  It will be lined.

As always,  thank you for your input.    Happy Thanksgiving !!

Myrtle