First, did the council approve you by putting your name on their waiting list? If yes, then call them to ask which properties they have in your area and then, you can start searching for the house you like. Make sure to compare the council's price with other similar properties in the area. You'll be amaze by the tiny difference. 4 of my friends ended up buying their houses privately and do not have to worry about clawbacks and the developers are quite more flexible than you think.
In my case, I found out that there was only €15000 difference between what the council is selling theirs for and what the developer is selling his. So I went back to EBS to get preapproved for the difference. I got lucky and got it. So I dropped by the estate agent's office to see what I can arrange about the deposit, only to be told the price will be dropping down further in a week, hence my waiting.