Wind chill is exponential. Meaning that without active heat, the cold is going to win at some point regardless of layers. Especially at the temps and speeds you're talking about unless you take frequent breaks. I know you mentioned a budget, but the old saying "buy once, cry once" comes to mind.
I have heated base layers from Warm n' Safe. Socks, pants, shirt, and gloves. Over these I wear insulated polyester mid-layers, then windproof top-layers. All this combined with a full-face helmet and some neck protection allows me to ride down into the teens at the speeds you mentioned. I've done multiple Iron Butt rides where several hours were down in the 20's at 85mph+. I was as comfortable as I am now sitting here typing this.
As far as something budget that will handle the outer and mid-layers at the same time, check out the Bilt Storm 2 pants and jacket. I only have the pants but suspect the jacket performs just as well. The pants are worth their weight in gold. Tens of thousands of miles on them and along with heated liners, there is absolutely no temperature threshold, at least that I've encountered. A two-hour ride on the interstate at 15 degrees was honestly fine with my current setup.
I have heated base layers from Warm n' Safe. Socks, pants, shirt, and gloves. Over these I wear insulated polyester mid-layers, then windproof top-layers. All this combined with a full-face helmet and some neck protection allows me to ride down into the teens at the speeds you mentioned. I've done multiple Iron Butt rides where several hours were down in the 20's at 85mph+. I was as comfortable as I am now sitting here typing this.
As far as something budget that will handle the outer and mid-layers at the same time, check out the Bilt Storm 2 pants and jacket. I only have the pants but suspect the jacket performs just as well. The pants are worth their weight in gold. Tens of thousands of miles on them and along with heated liners, there is absolutely no temperature threshold, at least that I've encountered. A two-hour ride on the interstate at 15 degrees was honestly fine with my current setup.