NO, NO, NO!! You are not free. You're the most expensive person out there.
You can still be the guy in the saddle or running whatever piece of equipment you want. But there is a cost to that. What you could do is hire someone to do the administration to relieve you of that burden. For your businesses that's a P/T role. There are more qualified people out there that can handle all aspects of the admin, record keeping, bookkeeping, call management, tracking, renewals, etc... How many hours do you put into all that now? And I'm sure it's done poorly and begrudgingly at that! Even if you've got an understanding and skilled spouse doing it there's still is a cost. You could pay them as an employee and distribute your income across the two of you instead of just one. An accountant could help you figure out the best way to do that.
The other task you could off-load is sales. Hire a selling arborist, leaving you free of that task. Again, you need to be tracking your time when you're selling to see what that cost is. But that would free you up to focus on the production side and training your crew to develop them. Now instead of ending your day early to run off and rush through a appt you'll be able to add production capacity thus increase revenue.
Getting that piece of equipment then becomes another mouth to feed. By increasing your productivity (at a cost) you'll then have to increase the number of jobs to fill the extra time available and also to justify the cost. If all it does is shorten the day overall then what happens with the crew if you don't add more jobs to fill the day? If they're not getting their full hours you bet they'll be looking elsewhere.
Climbhigh, sure, once bitten, twice shy. Just learn from that experience what the problems were and develop your operation to address that. Others have gone down that road and have managed to make it work.
Whether you want a company of 1000s or 2, it's still a business to be run. Run it well and it will be prosperous for you.