I bought a relatively cheap and ugly steel “raised panel” garage door. I then had the roofers apply the steel siding panels to it. Then, the garage door guys came back, weighed the door, and hung it with the appropriate springs. The whole thing cost about $2000, much less than a “custom” door.
Here’s the door installed. If you look carefully you can see that the installer got the order of the middle three panels wrong. I’m going to see if he can swap them. Otherwise the seams line up in a funky way.