could you not have someone go to the yard for you? Most you could probably just ask at the desk if they've got one, and they'll go get it for you... (Least the ones I've been too...) and is the reason you aren't going with a full sized spare becuase there is no room, or becuase it's too heavy or ackward? likely any donut spare that would match your tire size and wheel bolt pattern would be fine.
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