Re: More questions to ask! :)

I would go for alternative nr. 2 because of the polyvinyl alchohol in nr. 1.

You can start by painting your skin. But not to much in one place, use different spots every other day to avoid skin irritation.

I dont know abut this one internally; probably good, but I would get some Lugols just to be sure.
From then on just count the mg you would like to take. If you buy the health leads Lugols we all know how much it is per drop, and it will be easier to guide you further.

One option to get Lugols in your country may be the aquarium-shops. Have a search on it.