If you can do it I say go for it! I see from your address you are in Quebec - will that mean you need to get quota from the Federation?

I too have considered doing maple full time but it just won't work for me right now. We'll see what another 5 or 10 years can bring.

If I was you I'd try to find some young legs to help check lines periodically through the season. The extra sap you get from the higher vacuum will pay for the labour and frees you up to do other things. I know doing it solo and not having labour costs is your goal but IMO there is a definite ROI from paying for someone to do certain things for you.