Custom Monk Items (5e)

I was looking at a possibility for a Monk/ [Geomancy](http://www.dandwiki.com/wiki/Geomancy_(5e_Archetype) combo and I was wondering if it would be more feasible to just make a custom item in order to keep the unarmed stat set up. An atunement item like bracers that do nothing but The 14th lvl spell Stoneshaping, with some disadvantages until you hit lvl 14, the 2nd lvl spell Magic Stones, and the 1st lvl spell [Stone bolt](http://www.dandwiki.com/wiki/Stone_Bolt_(5e_Spell). I was also looking at it instacasting Melf's Minute Meteors

The end goal is something like an Earth Bender with the main focus being the ability to punch rocks at people as a ranged attack. The size and determination of these rocks would be determined by the DM of course and the rules centered around the spell. I would also be curious if this couldn't be accomplished by just using a 4 Elements Monk. Help would be appreciated.