Very good, thanks! My first project was a table saw kind of cutting machine for crafting, my next one is going to be a clockwork "truffle pig" to give me a bonus when gathering Provisions. Sounds like it will be quite useful for longer journeys.
Also, of what use is gaining Opportunity when going home or in the crafting phase, if it can't be spent and the track is cleared before your next journey? I find I gain an awful lot of it and even though I Find an Opportunity in every hex where possible, I go home with a couple left.
Is the track cleared before your next journey, though? I honestly don't remember if I mentioned it, but if I did, I don't think it should and I might change that!