What's the platform?

What is your (honest) estimate of the code quality / time to familiarize?

What about those bugs, are they things that you could conceivably still do before you go to jail? Would it be acceptable if they were there as long as you were gone? (after all, they are there right now).

You're in Singapore?

How do you intend to deal with the financial side of this? (I take it there is a small business to be run as well to keep the lights on).

I can see a few options:

  - blindly trust some random stranger (probably a bad idea!)

  - give the company in trust to your lawyer while you are
    away to run on your behalf

  - get a friend up to speed in the time remaining and turn
    the site over to them before you go.
    

Keeping the lights on is basically what you're asking for but the bit that I'm missing still in your plan is that you are right now probably promoting your site as well, which is one of the reasons it is working. Mothballing it with the marketing stopped will only work if the period without active work on the site is not too long, it may take more effort to keep it at the level where it is right now if the time is longer.

You'd have to expect that no matter what by the time you get out of jail (how long do you expect to go away for?) the business will have shrunk or will have died.

Good to see you at least have a decent lawyer, that may be an important part of the solution.