Hi Hoot,

I have not used this myself but someone else has bought d-limonene from here:

[URL unfurl="true"]http://www.citra-solv.com/ppaf.shtml[/URL]

NaOH is probably one of the easiest things to get hold of, you can get it from any local store. If you have drains to be cleaned you'll be able to find it! If you can't get to a store or don't have any near you then I'm positive you can find it on ebay or something.

Hexane can be bought here: http://www.hexane.chemicalhouse.com/ although again I haven't used it. If was ever to attempt this extraction (which I won't obviously) I'd use naphtha, plenty of sources of that all over the place, which don't involve the net - I see the net as a last resort.