Hi,
Yes, you can Ver zuruckkaufen some items and on, to get a higher animal.
does, at least for the blacksmith in the Wachterfestung. selling, Saven, reload.
(works also often sell just adding and re zuruckkaufen)
A little bit of this depends also depend on your level.
See all 3 levels starting with 1 (ie 1, 3, 6, 9, 12, 15, 18), the animals increase of found or purchased objects.
are (except they set at a fixed animal value, such as the sword of King Maric)
From level 18 you get eg a Tier 7 sword.
(watch out, the value is set as the monster level when you first enter the area!)
The Mod Winter Forge You can but you level up every time the subject matter, if you want.
http://www.dragonagenexus.com/downloads/file.php?id=122