Cutting ends of 2x4, meeting in star pattern, five of them

So I got to make five 2x4s meet in a point. Each gets 360/5=72°. Each half gets 36°, which means if I keep the work horizontal, I got to cut with the blade at 54° off vertical. Now, both my table saw goes only to a bit over 45°, so I am stuck. If these pieces were short I'd build a gig to feed the work piece against the table saw vertically. But they are close to 8' long. I don't have that vertical clearance in my shop, and even if I did, I'd surely have a hard time feeding a mast like this against the blade, while keeping it vertically, even with a gig. What would experienced woodworkers do?