Chris Kott - I don't have any experience growing mycorrhizal fungi outdoors so not sure what to tell you about the chanterelles. If I were to start I'd probably look for the right habitat with associated trees and spread some wild chanterelles finely and densely, either blended or otherwise cut up into small pieces. My thought being that mycelium can continue growing and reform a colony in the right habitat and if that fails there are still spores present that will have a chance of forming colonies. I'm pretty sure people are able to produce sterile spawn of many mycorrhizal species which might lead to more surefire options but I have not searched down that road. I have grown pink oysters, phoenix oysters, these pearl oysters, elm oyster (Hypsizygus, different genus), reishi, and maybe a couple more. I recently got ahold of many more cultures in different conditions such as shiitake, golden oyster, king oyster, shaggy mane, wine cap, reishi, black poplar and am owed a green shaggy parasol culture. I'm sure some of them will either be successes or failures right away as they are small or weak cultures but that might mean I end up with the ones I can cultivate the best which might not be so bad.
Richard Valley - that's great to hear! Buying spawn is a really fun and easy way to get an idea of what it's all supposed to look like and what should happen. I bought this Hypsizygus ulmarius spawn bag from a local farmer's market
for $15 and it's so far put on a good performance.