pretty much any throttle that is 1" diameter will work, mainly you want to look for ones that are just single cable,  but you can use the push pull type ones as well with your throttle cable just hooked up to the pull side of the throttle tube.

Going with a different housing though you will most likely have to get a custom cable made so that you can get the correct housing mount for the throttle cable and also the correct end for the carb.

R.F.

ANY 1" Harley throttle. I use one that was made to fit custom Panheads, Shovelheads and Knuckleheads. The cable for the housing is an oddball. I'm using a Honda throttle cable, it does not fit the housing correctly, but was the correct length. I deleted my handlebar switch boxes, but the throttle pipe itself worked perfectly with the stock switch box and cable.

With the 15" rise bars I have had for the last several years, I've used the Honda throttle cable and a VN800A clutch cable (currently a +4", but stock length would have been fine).

Same housing as you list, mine has a metal throttle tube. When you get it, take the housing and your stock cable to an independent bike shop. They can help you get the right cable. Maybe, since the throttle assembly is most likely Taiwanese, and even working in a bike shop with the entire Motion Pro cable catalog in stock, I could not get one to fit it...