Can you get Sunshine Advanced Grower's Mix #4? I know GrowGreenMI can ship it anywhere pretty much for $22.50 a bale which expands to 6 cu ft. It's dried and compressed so the chances of bugs surviving that are minimal if even possible.
I certainly wouldn't go with
fox farm happy frog from that same place again and risk the same exact problem. Pro Mix is similar to Sunshine that it's compressed, just another option out there. I haven't personally used it, but I've seen plenty of great results with it. You'll need to water those types of soil more frequently because they are more porous, but they are both excellent alternative options if you want to greatly reduce your risk of having this happen again.
I like to add some Coast of Maine Stonington Blend to the Sunshine mix, going 65/35% right now. That provides a decent amount of food (Stonington blend is packed with nutrients) and helps with water retention. The Sunshine mix is an excellent medium by itself though, but like I said, it needs to be watered more frequently and doesn't have food in it. It does have silica and mycorrhizae in it which are both very beneficial.
There's always the risk of some contamination with soil especially if it's stored outside like most nurseries/hydro shops. There are ways to limit the bugs, but not something you want to have to deal with.
What strain is it from Cannarado? They're one of the best breeders out there, have been for a long time now. Sundae Driver is a legendary strain imo.