Very nice! I have a grey and red fox in the freezer I want to attempt to mount but I am fearful of hair slippage since they are notorious for that. I ordered a quart of stop-rot so now I just need to find the time to do it.
True, all foxes have that reputation. I followed Brian Hendricks' advice and prepared a pickle of 1 lb of salt per gallon of water, and then added a half ounce of acid for each gallon of water. Take the fox out of the freezer (whole) and submerge it in the pickle for 8-12 hours, then skin it and put the hide right back in the pickle. Proceed to tan it. As soon as you've completed tanning, turn it fur side out and blow dry the hair real good. Hope that helps. Brian has a Youtube video of skinning in the pickle if you want more detail.