I would like a post the same as stock but with a T-top instead of the flat plate. Assuming it would be affordable, like $120ish. I like my Powermadd pivoting setup but it's not the prettiest thing.
Most importanly, you need to keep the "T" no more than 3.75" wide. The flat mounting spot on the stock bars is only 3.75", so any wider and you have to trim the top riser clamps. Currently all the available setups are 4.25" wide and require grinding to the riser cap corners(to fit the bend in the bars). Keep it at 3.75" like posted and I think you'd sell quite a few. I really like the stock bars and don't want to have to switch.
One more thing, it's needs to be as strong as stock or stronger.