With your 24 inch draw length, I bet you could shorten a set of 600's up enough to put a 100 or 125 grain broadhead adapter or insert into the shaft. Put a 150, 175, 0r 200 grain head on the front, whichever will tune out best, and you will have a pig stopping arrow. If it was me I would make sure the head was a single bevel two blade with a tanto tip and razor sharp. Ron at KME can hook you up with some grizzlies.
When you start working with new arrows, you will want to leave them full length and start cutting them down as you work on bare shaft to fletched field point tuning.
I personally prefer to bare shaft to fletched tune all of my arrows. Set your nock point for proper up and down first. Then start cutting the shafts in 1/4 inch increments while working out the proper length and head weight. Keep shortening the shafts until the bare shafts are about 1 inch low and 1 inch right of your fletched shafts. I will say it really clearly. Don't cut the shafts at all. Start at full length and the lightest heads. Get them tuned. If you have enough shaft length to cut some more off. Try the next head weight up and keep the process going. Once you have the head weight and length figured out, then.....
The next step is to test fletched field points to fletched broadheads. Normally at this point you can adjust brace height, add or remove string silencers, etc... to fine tune the groups. Both arrow sets should hit in the same spot.
If you cant get 600's to work out then bump up to the 500's and start over. I am willing to bet the 600's will work at around 26 inches long or a bit more. With a lot of weight up front you should be able to get into the middle 25% FOC and over 600 grains of weight. These kind of arrows will kill hogzilla with a shot in the boiler room.
All you need is half a dozen full length shafts. The fletched and three unfletched to work all this out. Once you have the bare shaft to fletched completed. Buy another half dozen and set them up for your broadheads.
Good luck and let us know what you end up with.