This is something you should look into.

Might cost less than the loss on the BUS.....



Looks like you need roughly 24" to 28" at the most. I would think that amount wouldn't be impossible to find in some manner.

How much room is available above the header over the existing garage door?

It should be possible to raise the header at least a little, lower the garage floor a little, and add some panels to the door, so you can cover the bigger opening.