leaning residential garage

huangyhg

leaning residential garage
two car garage leaning at the opening end - 20 foot wide, with 1 foot turn at one side and 3 feet at the other.  roof is supported to header over the door (this is not the shear wall) - nice high center of gravity, eh?  
anyway, any ideas (maybe past expereince) on relatively easy way to straighten/brace this end? simpson shear wall products are not made for retrofits.  i was thinking of advising on interior frame.
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add a steel portal frame of some type at the door opening or,
add a ceiling diaphragm - either with diagonal tie-rods/turnbuckles or plywood sheathing (after plumbing the structure) to make a 3 sided shearwall system or,
add exterior buttresses (may not be feasible or desireable or,
punt.
jae
i was thinkin' of the 1st option you listed, but i sort of like the 2nd option.  thanks for the input.