Hmm.. maybe add bow skins to your post.
Ie, Musket/flintlock look for bow. And fires gray spheres.
Acts the same as a normal bow.
Can be sold at york.
Differen themed 'skins' that you could buy for each region.

healing bow would be extremely op. You could quickly shoot 3 at melee range to heal an ally. its fire rate would have to be very slow(say one every 3 seconds, and the heal should scale with range, ranging from 0.5 hearts at melee range to 2 hearts at maximum range.

I like this idea too. ! although i prefer rares such as holiday bombs are rather than stuff you can just buy at each town

Good idea too , of course these would be looked into thouroughly too make sure everythings balanced

inb4 arrow spam is NOT pk