You can probably get it tanned for under $300 if it's around a 6' bear. A rug, however is a different story. I've had my taxidermist do both to similar sized bears. The rug was $1400 and the tanned hide was $360.
Readily available indeed, tanning solution is included. Never done a Baer but everything else I've done, as well im sure most animals come with their own tanning kit.OoD mag has an article this month about doing it yourself. Degrease it with dawn detergent and tan with readily available tanning solutions.
This is your tanned skin and probably cost you a few hundred.
http://www.jerrystaxidermy.com/Assets/Images/gallery_tanning/images/bearhide 472_JPG.jpg
This is a rug and cost you about $300/ linear feet.
http://www.macstaxidermy.com/bear images/bear rug.jpg




























