Thanks for the suggestion! I actually got the inspiration from the tournaments. I actually do build Vev of harvest if I'm doing pure CP: AC, Doible Eve, BM, Defnese. But I used shatterglass for this because the CP is not that much. I'm currently testing the difference and Shatterglass just seems a bit better. I'm working on a full Vox guide now so it will be explained there soon.

For boots, I feel that oakheart is a bit better because: it will effectively decrease the chance of enemies bursting you down, deleting you instantly. Boots will not help in these kind of situations. However boots will work, as you said, when chasing. But Vox's early game is still weak and its a little hard to win a fight, let alone chasing enemies down.

Nice build! Unique. I believe something similar was used on Ringo in the Vainglory worlds.
2 things I have a problem with: Shatterglass is built before Eve of Harvest (Eve of Harvest will let you do that 1v3, Shatterglass will give you more damage, but you are very squishy and need Eve to sustain).
Also, boots are not bought till the end. This can be justified with Vox's Sonic Zoom cool down reduction, but could prove detrimental when you go for a chase.
I love that you obviously have in depth knowledge of the game, with explanations on gold efficiency and infusions.

Update- added Tension Bow option for early game, which is a very bursty start but loses effect late game.