Hi Scott, How much the WLC2504?

My worry is the budget. since the 1830 have a built in controller(mobility express) I can use that for my 1810w and I can also use the 1830 as AP. what can you say that sir? 

Actually my only requirement is no wired connected. Since i got AP, I'm planning install additional AP because the house is big i think its 900sqm 2 storey house. What if i use the AP1830 and then i will add another AP like 1810w, is that ok for no ...

Ok thank you for the info. one last thing. from WLC going to AP, is that wired required or this  WLC is capable to access the AP without network cable?

Minimum of 5? 5 AP connected in the controller? I will use this AP for the house only. but in my projects like condominium which is better?