yea, what happened to the food that you thought was the soap ?
my first advice is to replace those little washers on the legs with ss ones.
or rust will be an issue quickly. also, most washers will have a smooth side and a rough side. make sure the smooth side is against the vents. also keep the legs lightly coated with pam so they don't rust.
otherwise start practicing. phubar has a lot of posts on cooking on the ga.
there are many mods done by others but might be better to get comfortable with it first.
mine in action