I did this with one of my businesses once - A Super Food ingredient import + product packaging + final product export.

The way I approached this was as follows.

1) Anytime a person asked me how to do something, I wrote up a procedure for them + walked them through the task once.

2) Next time this same task had to be repeated, a new person was given the procedure write up + this new person worked together with person who did the task last time.

3) They refined the procedure, engaging me as required.

4) This process continued with each task in business.

Roughly 3 years later the residue was a complete system manual.

Now I invest maybe 5-10 minutes/week into this business.

The primary factor in this process is your commitment to...

Never complete any task in your business again. The degree of your commitment to creating systems will determine speed of your business going on autopilot.

You might consider hiring someone to assist you with this.

And, based on your Website, your business should be far easier to automate than mine was.