Consider keeping a keen eye out for Moose, Grizzlies and other large beasts. They are as easy to tame as all the other animals and often have incredible stats. They also don't need to be equipped -- which means you don't have to worry about repairing the precious gear you gave them. Gratz on that 15k unlock!
p.s. You can play the desktop version with the save-file from the browser, but its complicated. Best to take what you learned and start the next game using a downloaded version.