Only Rebuilding and Reorganizing USED indexes

Greetings all, I've found some pretty good indexing scripts out there that use the dm_db_index_physical_stats view to determine which indexes are fragmented and need to be either rebuilt or reorg'd. I also read up on dm_db_index_usage_stats, which looks like it can give us information on if indexes are being used or not. I was going to write something that
1 - ensured SQL had been up for some time (7 or more days of uptime is a good sample size for my server)
2 - gathered info on un-used indexes using index_usage_stats
3 - gather info on index framentation
4 - rebuilds or re-orgs indexes that are fragmented AND are used
5 - write unsed index information to the event logs for review
I may keep the 2 scripts/jobs seperate and write dm_db_index_usage_stats query to write to a table over longer periods of time to be sure about the index usage. Does this logic make sense? Anyone seen anything simular to this already? I want to ensure I am not spending cycles rebuilding/re-orging indexes that aren't even being used. Thanks in advance!