Any question answered...

Would this work:
let's say I'd have a fixed gear bike, with a disc brake up front.
If I wanted some sturdy new wheels I'd just go ahead and buy two 29er disc frontwheels with Shimano 525 Hubs, flip one around and respace it, then bring it to my LBS to be re-dished.
Then I'd have a nice matching wheelset sturdy enough for some abuse and with disc brakes.

Any objections?

I think spotter has done this and not had any trouble