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Cisco Router: EIGRP Authentication key/s expired and need new keys

I need to update keys 1 & 2 of 3 EIGRP authentication keys that have expired on a Cisco Router.  The one key (key 3) that has not expired has a date of 2 January 2013. I'd like an expert to look over the steps I'm considering and give their opinion. Here is what I have come up with for a coarse of action to replace the expired keys:

1. EIGRP authentication keys 1 and 2 need to be removed
2. Key 1 needs to be added with a start date that overlaps key 3 and last 180 days. Key start and end date: 1 Janurary 2013 - 31 May 2013
3. Key 2 needs to be added with a start date that overlaps key 1 and last 180 days. Key start and end date: 30 May 2013 - 31 October 2013
3. This is done on all neighbors.
4. When key 3 expires Key 1 will take over, when key 1 expires key 2 will take over at which time it will be time to replace key 3 and 1. In this way the neighbor relationship will not be broken for any period of time. Note: NTP timing on all routers.

Thank you,
Dave
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