The oil(s) used for tanning (pro-plus etc.) What exactly is this oil.. is it produced for the taxidermy industry as a whole, or is this oil available under another name on the common market. I ask for curiosity, but also for saving money.. if this oil is available locally under a commercial name and supply companies just re-bottle it, then I can purchase a lot without the shipping costs. McKenzies is getting ridiculous, as is others.. so heavy chemicals (oils, acids, etc...) I would prefer to buy locally.. but I know there must be another name for this oil.. or any other oils you can use??