extracting essential oils
I'm considering building my own still to extract the "essential oil" from a specific flower which will not work with steam distillation (due to the heat). I don't really want to use a solvent either because it can leave traces of harsh chemicals in the final product, which will eventually be used on skin so I'm going for an organic solution. A pure essential oil for this flower does not currently exist on the market, so I'm wondering if there isn't a problem with certain herbs which make extraction impossible...?
Currently I'm leaning towards a coldfinger extractor and using an organic alcohol as a solvent, which seems to be the only affordable option although I don't know if it will work, and I'm afraid it will leave traces of alcohol behind. I was reading up on super critical carbon dioxide extraction but the cost to get started with one of those would be in the range of $45k+ and also require training I don't have to operate.
Any suggestions, ideas, please?