I know before I start that the advice is to save and covert 2/3rds of your guilds to SOS but epic has changed that. For those who don't have crystals or want to spend a fortune prepare for repetition. I've 22 guilds to convert and save the 27.6 ( required amount after selling guild ) each time. I wish I could say it is easy but it's not. My advice is set your self a target each day and try and keep to it. YEs Allie trade if you want but remember it's a gamble and your never guaranteed. Kept to bigger clans if you can especially the ones that do haunting quickly. And remember it's only a game
There are plenty of guides but this is my experience. Simply it's hard work with a lot of repetition.