For a 2004-era door, we're usually not hunting down obsolete hardware. Standard torsion springs, steel rollers, and a double-car track kit cover most of what's on the truck for this kind of job. We stock insulated steel panel sections and opener units rated for the cold-moderate winters this part of Kansas gets, which matters more here than in milder climates - a door with no insulation value will let a garage swing cold fast once the temperature drops. If your house falls on the older end of the 1950-2004 range that covers this area generally, we still carry the older-style hardware for that, but for a Spring Hill install we're typically working with newer rough openings and more standard sizing, which keeps the job simpler and the parts easier to source.