Another idea from me.

Angel gets 17 Streetdecks.

6056 to 6070 go to Riverside for the 53/54 & 58 
As a result of service changes they would merge together into one service numbered 53/54 operating every 7/8 Minutes between Heworth and Gateshead, every 15 minutes on the existing 53/54 route, basically the route would be like this.
Heworth - Leam Lane Estate - Felling Square - Deckham - Gateshead - Newcastle - Bensham Road - Saltwell Park - Coatsworth Road - Gateshead - Deckham - Felling Square - Leam Lane Estate - Heworth

This would then allow the following.
8339 to 8346 transfer to Deptford for the 35
5377 to 5384,5389,5390 transferring to Chester for the single deck boards of 13/14/X25 & services 28/28A. 
3961 to 3964 would remain at Chester for the double deck boards of the 13/14/X25.

As for the Citaros I would go with what I said earlier.

5304 to 5309 remain at Deptford for the 61
Black Cats Scania L94's would the be allocated to the 9/38

5324/25 - Spares at Washington for the 4/5 & 50
5326 to 5336 - Branded at Washington for the 5 & 50
5337/38 - Spares at Washington for the 4/5 & 50

The Omnicities would then go to Percy Main for the 11/19 with the Scania L94's/Volvo B7RLE's replacing older Scania L94's in the fleet.