I'd say, if you're like me, you'd feel worse about half-heartedly going for the 112 then opting to SAG than to wholeheartedly take the metric.
Unfortunately, the 112 doesn't fit in right now and it might be better to go with your long-range plans.
I've felt bad about taking shorter options (am doing it in two weeks, as a matter of fact!) but sometimes things are what they are.
Good luck though, sounds brutal though your training sounds equally brutal!