No worries. As far as diaphonized specimens go, glycerin is key. Make sure the glycerin you’re buying is NOT vegetable glycerin. You need the stuff you can buy from taxidermist supply companies. (Van dykes sells glycerine by the quart for about $14)
As far as storing the specimen don’t use alcohol. Alcohol can dry out and damage a Diaphonized specimen.
The person you bought it from should have shipped it in either a ziplock or s small Tupperware container. As long as you keep it sealed up it should keep moist. Don’t leave it out exposed to the air and it should be good until you can bottle it up. 🙂
Also note that when you freshly pour glycerin into a new jar it takes a while to settle and look clear.
Best of luck! And enjoy your new specimen.
-E