Hi, honestly, if you feel that you want to redraw the whole thing from scratch then I think the best thing to do is to redraw chapters 1 and 2 and release them. Sure you might delay the story by a month or two, but in the end, if you plan on re-drawing the entire comic and then re-releasing it, won't you just have more work to do in the long run?
At least this way, you can release 1 and 2 with the new drawings and then you can update and redraw the others as you go along, rather than having to do everything twice over. Seems to me that if you want to balance you comic with your life, that's the best option.
In any event, that's just my two cents
. In the end, what ever you do is up to you.
In the meantime, if you need something to read, feel free to check out my novel: