We want to replace our steel-covered wood front exterior door with a full glass exterior door. The door in our 1982ish manufactured home is a smaller size and I can't seem to find one that fits.

The current door opening (inside the jam) measures:

2' 8" wide X 6' 2" tall

Any good sources on finding a door? I'd much rather pay in the $200 range that normal doors go for at Home Depot than the $600 I was quoted for a custom door.

Thanks!