Hot Rods 34 Ford reproduction roof tack strip

Where Can I buy the Aluminum reproduction tack strip for a 1934 ford. I would like to bend it myself. Thanks

 

If it's the same as `32, LeBarron Bonney sells the straight lengths of extruded aluminum.
Good luck trying to form them yourself. On the `32 the front corners are a smaller radius than the rears.
If you try to just form these over your knee, I'm afraid you'll just end up with a bunch of scrap aluminum.