You're going to have to make your own game objects, It is quite simple. You just find a displayID for a house, and then create a game object with that ID. Heres what you do. (Assuming you have Navicat or a similar program)
1). Go into gameobject_names and create a new entry.
2). Put in an entry ID that isn't already taken (if it is taken, it will prompt you to choose a new one)
3). The type of gameobject is important; heres a list of the different ones.
Code:
1 - Button
2 - Quest
3 - Chest
4 - Binder
5 - Generic
6 - Trap
7 - Chair
8 - Spell Focus
9 - Text
10 - Goober
11 - Transport
12 - Area Damage
13 - Camera
14 - Map Object
15 - Mo Transport
16 - Duel Arbiter
17 - Fishing Node
18 - Ritual
19 - Mailbox
20 - Auction House
21 - Guard Post
22 - Spell Caster
23 - Meeting Stone
24 - Flag Stand
25 - Fishing Hole
26 - Flag Drop
5 and 14 is whats generally used for most gameobjects. 14 is a lot more common with larger objects like houses. (If you use Type 5 when the object requires Type 14 it will just show up as a blue and white checkered cube)
Then under displayID or Display enter in one of the following;
Code:
7708 - Docks
7709 - Broken Blimp
7806 - Tuskar house no roof
7807 - Tuskar hut with root
7808 - Alliance watch tower broken with scaffolding (The ones near naxx in dragonblight)
7832 - Grizzly Hills INN
7847 - Westfal Small house
7914 - Alliance Wall
7915 - Alliance Side Wall(Pillar)
8010 - Small house
8011 - Stables
8012 - LumberMill
8013 - FarmHouse
8014 - Farmhouse Old
8015 - LumberMill Old
8016 - Stables Old
Those are all Map Objects (Type 14). I got these ID's from my own small list of ones i like to remember.
If you do not have Navicat or a similar program, but you can import SQL's. enter in this.
Code:
INSERT INTO `gameobject_names` VALUES ('ENTRYID', 'TYPE', 'DISPLAYID', 'NAME', '0', '0', '0', '0', '0', '0', '0', '0', '0', '0', '0', '0', '0', '0', '0', '0', '0', '0', '0', '0', '0', '0', '0', '0');
Replacing the text highlighted in red with the correct numbers. (That being if the repack is arcemu, i'll go find aspire structure of gameobject_names and post back in a sec)