I can imagine the outdoor temperatures are sufficient for safe storage of pelts! We've been having nothing but wet and sometimes quite humid weather in the Midlands of the UK.

There was a very good guide to brain tanning on youtube that I plan to try one day, the guy uses pig brain on a beaver pelt which I've heard is easy to get from a butchers, seems not many people eat brains nowadays! They say every animal's brain is exactly enough to tan its own hide...