Why do you want to shoot that much weight up front? That's going to give you an arrow in the 800 grain range (in part because it's going to require a very high spine and the higher the spine, the higher the physical weight). Sure it will hit like a ton of bricks, but will be quite slow and drop very quickly, even with a 58# bow.
If you were shooting a standard head, say 125-150 grains, you would need about 70-75# spine. If you want to put 300 grains up front, you'll need at least 90# spine. You won't find that in most materials in 11/32 diameter shafts. Will need to go to a 23/64, I suspect.
One of the differences between wood and carbons is that you can't front load woods like you can carbons, because they often can't attain the spine needed to handle the extra weight in front.
Good luck ion your endeavor.