Thread: Howa barrel

hey peeps. just wondering. I have a Remington 788 223. i started a dangerous thing by thinking about a fast twist barrel after seeing a Howa take off 1-8 18" barrel on Trade Me.
Just waiting to hear back on the thread diameter. if it's the little action its a no-go, but if its the 26mm tenon thread I think it might work.
the 788 has quite a long thread and the front portion doesn't have much there either with the relief for the action screw so if the thread didn't quite clean up might still be ok as there would be heaps of new thread
Howas have a small recess for the bolt head so that would have to come off anyway so that removes a couple of threads as well.
I can do the machining on the barrel but would have to give it to a friendly gunsmith to rechamber so costs would be minimal
Thoughts?