This is a brilliant attempt to bring Minas Tirith into a realistic model that Lego could produce.
If it has not been said already I would break this into three models. With other sets to make up the rest of the battles of the book/film etc.
1.The Attack on the Gate.
This is effectively the lower city wall, a battle like the Helms deep set. Including 2 defenders, Grond and 6 orcs. Aiming for a £75 to £80 price.
2. The Houses of Healing.
A middle city section and the place where all the romance occurs? Faramir, Eowen, Ioreth (a city townswoman) and Beregond, as a standard Citadel guard. Aiming for a £50 to £60 price.
3. The White Tree and Palace. The upper city. Which would have Gandalf the white, Shadowfax, Peregrin the Squire and Denethor with The Palantir. Again this might need to be an £80 to £90 set.
4. A battle set with Prince Imrahil?, Theoden, Dernhelm, Merry, three horses and the Fell beast with Witch king. £40
5. An orc battle set. £12
6. A southron battle set. £12 or if they include a mumak £25.
7. Army of the Dead. 3 glow in the dark skelton horses and 4 skeleton warriors, 1 elf (Elladan/Elrohir) and Strider/Ranger of the North. I would make this £15.