I'm not sure but you could try looking on gumtree and see if anything comes up to get an idea.
The others might have some other ideas where to look hopefully
The only place I know of that sells them is http://www.caboolturepoultry.com/apps/photos/?ss=14690111, but they don't have any for sale at the moment so it may be the wrong time of year. I'm not sure, but pea fowl may be one of those fussy birds that are tricky to get eating properly, in which case you are unlikely to find day olds for sale even when they are in season.