What are cheap options for an extra set of brake levers for mechanical disk brakes? A quick question. I want to have an extra pair of brake levers for my mechanical disk brakes set at a different position on my handlebar(s), and I want the whole upgrade to cost as little as possible. Ideally not more than 50$, at max 100$ (so no ultra-hightech sport competition-grade stuff). What are my options? So far I've discovered only the thing called "Cross/Inline brake levers" They seem like the thing, but it seems to me they are a bit limiting regarding where you can place them. Are there any other relatively cheap options?

Edit:
Sorry for confusion, I had to mention I don't have a typical road bike's or cyclocross bike's setup. I'm riding a hybrid bike, which has a butterfly bar as a main bar, and a couple of high curved horns attached at its left and right edge. Horns allow me to sit almost perfectly straight, and the main (butterfly) bar allows to lean forward for a bit more aggressive posture when riding over rough terrain. So I would like to be able to engage my brakes from both those main hands' positions.
Presumably you have drop bars. Inline brake levers are your only choice. The only places to mount extra levers on drop bars are tops. With inline levers installed you can reach levers from the drops, hoods and tops, so you really don't need levers anywhere else.