Hi JJ, glad to hear you're having a go at your own salmon flies.
Try Ian Woods, Grommit. 25 Kamasan low water salmon single irons for less than a fiver.
Kamasan B180 Salmon Low Water Single Hook
For cheap double hooks try Mick Bell, (Bloke), here's his web site.
All his fly tying hooks are on special, buy a pack get another pack free. The silver hooks are not perfectly finished, but they're strong and sharp, and CHEAP. I'm using them and they've not let me down. Similar to Partridge salars but a longer shank which makes tying a bit easier. The black doubles, and the black trebles are cracking for the price.
Mashama Hooks