No one's mentioned yet that if you go with a non-adjustable hardpoint handle, you'll want to have line clips in a whole bunch of lengths to adjust for neutral. Lee's machine shop sells a gizmo that makes line clips out of straight wire, and he'll sell you wire to go along with it.
I made myself a similar (but much uglier) gizmo, along with a Fancher-style handle. The handle isn't special -- it's just made by looking at other handles, and doing the obvious.
The clips will have wire about 40 mils in diameter. If you drill 1/16" holes you can put them in a straight line 1/10" apart (or 3/32, depending on what you're using to measure with). 1/10" seems to be a perfect compromise between the folks that think you should adjust things by 0.002" at a time, and the folks that will say "Are you sure you have enough holes in that?"
So -- consider that I fly intermediate and size your grain of salt accordingly, but here's a drawing of what I use, along with a picture from the middle of the assembly process, after everything is glued up and drilled for rivets, but before the rivets went in.