I don't know why the malt read out I read was converted that way, but that was what it said. I haven't read one in awhile, so it didn't trigger any bells saying "that's not how it's usually done."
Anyway, if it'll convert itself go for it. The key thing I was trying to convey was that if it's diastatic power is enough to convert itself, then there is no reason why you can't use all that in your grist. It'll be a wheat bomb for sure, and as many others have said, stock up on those rice hulls or your brew day will be hell.
I didn't think wheat wines were 100% wheat malt. The only one I've seen the ingredient list for was about 80/20 wheat to 2-row. It isn't a terribly common style.

