I think it is worth considering Flurry of Blows, though. 4d8 + 20 is a big step up from 4d6 + 10. The loss of stunning strike is also significant, as that is a major class feature and ability to not only attack, but to strike reliably with advantage is a big draw for monks, aside from the obvious benefit of just straight nullifying a powerful enemy.
When considering AC, it should also be factored in that bracers of defense are a no brainer and practically standard issue on monks, so your actual AC would be 20+.
That said, you can do what you want. This will work, sure, but you are pretty much turning your monk into a worse Eldritch Knight.
If you are worried about attributes though, are you opposed to just rolling your stats? It’s been stated several times that this feature will be in the final game.
