We used HT10, it looks good, it's soft and bends well. Shipping gets expensive Around the nose we used 1/2 x 1/2 aluminum angle, .050, from the big box store. Very hard, we annealed it with a torch to get it to bend.
Why reinvent the wheel? I used the HT11 very easy to install. Just make sure you buy all your trim at once so you only have to pay for one shipping tube. You would hate to be short one piece.