Another option for you - find some nice marine rope, preferably 5-6 mm (1/4 inch if I'm right) double-braided relatively supple polyester rope (don't buy the cheap plastic ropes, those can burn your horse's head if something goes wrong), cotton rope is another option if you want softer feel for your horse. Then, browse around online a bit until you find a rope halter guide you think you can work with, and simply knot your own in the right size for your horse. I make my own rope halters and I think a fitted halter is always better than a store-bought one. This website has helped me a lot in looking for info on how to make my halters: Cypress Lodge :: Promoting Humane Training and Treatment of Horses
And the best part is, you can make it just like you want to, but I'd recommend to always start out with a simple one. Rope is thin and will give very specific cues, anything to make it more severe isn't necessary (and those extra knots can seriously hurt your horse's face by the nutcracker action). The only adjustment I made to my own halters is to braid a noseband on it by simply weaving soft cotton ropes through the two ropes already there. It looks flashy and doesn't make the feel for the horse much different, other than that it creates more surface area on the nose and stops the lower rope from slipping down the nose.