Hey Ed,
I'm not quite in the same boat as you, as I have a (boring) job and although it pays ok, but I'm always looking for (legitimate) ways to supplement my income and have toyed with the idea of seeing if there is may be any commercial upside to my budding bushcraft skills.
I'm not an expert in any outdoor field, so making a bob out of any kind of instruction is a no no. I would have no idea how to make a knife and my needle work sucks, so blade and leather work are out too. There are many other outdoor skills I am also a bit pants at, but as this is not intended to be an essay, I'll just skip them and move swiftly along to one thing I am half decent at doing and that wood be working with wood.
I've always had a reasonable level of competence to working with wood, both for practical and artistic applications, but I've never previously really worked with wood for fun. During my time at the recent Cornwall RV, I took part in the wood carving workshop, spent a couple of enjoyable hours carving a reasonably spoonlike spoon (with a Mora 511 and 162) and by the end of the workshop, was well and truly bitten by the wood carving bug.
I've got myself a 511 and a 162 and now happily whittle away, whenever the mood takes me. So far I've carved a couple more spoons, three cups (two kuksa alike one that is more of a noggin) two deep bowls and one shallow bowl that if you squint your eye, could pass for a plate.
My occasional girlfriend has been sufficiently impressed with my output to suggest that when I have produced a few more offerings, of reasonable quality, I bring them along to the various craft fairs/car boot sales, she makes a reasonable living flogging tat at and see how they go.
She has also suggested I have a go carving an animal or too, which I will do at some point, but I'll hone what I'm doing a bit, before I move on to something new (plus I think I'll need a couple of specialised knives to do intricate and detailed animal carvings and I've spent my knife budget for the time being).
I've no idea if I will make any money out of this and even if I do, I doubt it will be enough to enable me to give up the boring day job. But other than the outlay for the knives (plus care and sharpening accessories) the only thing I am spending is time when carving and as I find the whole process very relaxing, it is a price I am happy to pay.
This might not be the answer you were looking for, as your post suggests you are looking to explore possibly avenues of making a living primarily from bushcraft related handiness. I am sure there are folks on here who do just that and will be better placed to tell you what you need to do to make a decent crust. But if you have time on your hands and the tools and materials already knocking about, there is nothing stopping you using your skills to try and make a bit of pocket money, is there?
Good luck fella,
Colin