Now the gate bridge is ruined and isn't getting rebuilt why dont the harvest the gates and put them on 304s on the back wall of the hangars a PG gate in one hangar a MW one in the other add irises we know the asgard had tiny DHDs so get some from the asgard core.
Thigs it could be used for
1. getting suplies around easly need a spare part becase something broke dial earth/ atlantis.
2. Crew rotation ship dosn't need to return to earth to change the crew
3. reinforcements need more fighters send PJs through or even make an earth made gate fighter line up loads at each galaxys alpha site and there you go loads of fighters without massive hangars
4. Odesy can dial atlantis it has a ZPM useful in emergencies
5. secure coms gate can be used for radio signale if the ship is far from earth atlantis
And probly a lot of other things i didn't think of.
In fact the wraith should put gates on crusiers for reason 3
Apophis did this but didn't put it in a good place he had gate fighters and a gate on his ship but didn't think of this.