Help...8 3/4 brake lines to short

Those look like stainless lines. The short side will def stretch easily enough.....the long side I spliced with a section of stainless brake line I had and just re shaped my line to fit. I made my splice on the long section next to the pumpkin. If you didn't know you wouldn't know but you'll need the right fittings and a line flaring tool. If you don't mind waiting and returning what you've got that may be a better option for you. I just happened to have everything I needed on hand.