Hey mate. Firstly, congratulations! Good work.
Have not read all the responses so sorry if I am repeating them but here’s my opinion:
Try option 3 and if it doesn’t wok then go for option 2.
I have got two kids now and all I can say is that once kids come along you stop giving a shit about work and all that matters is that you can leave on time and you get paid every month without fail.
Seriously, family life can be stressful and if I had to worry about where the next work was coming from on top of all the other stuff I have to stress about i’m not sure I could take it.
I have been in the same job for a long time now and before I had children I used to have fairly regular worries about whether I was achieving highly enough and developing my career, but now quite frankly I couldn’t care less about all that stuff and am actually much happier at work now I have more important things to attend to outside it.
You are a highly skilled and employable guy so you will not have any problems finding a good and interesting job. Do that now and make things easier for yourself, and once your family is a bit older maybe you will want to have another go at doing your own thing.
All the best, P