ive actually been considering an item like this for quite a while. however, i think it should look more like this
enhanced movement 1
+ 60 health
+ 5 health regen
unique passive - +15% tenacity.
perhaps a little less on the tenacity but since all dorans items offer buffs based on the main stat of the item, dorans attack matched with lifesteal, rings ap matched with mana regen, etc, this item should get some form of tenecity to match the movement speed. maybe even remove or replace the hp5 with something.