I'm not 100% sure, but doesn't Goldtip offer a weight tube system that slides inside the shaft to add weight to the entire length of the shaft? I would think you could use that to increase your arrow weight significantly, then add the rest up front through insert weights and point weight to get your FOC where you want it.
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2008 Redhead Toxik - 68lbs, 26"
QAD Ultra-Rest
S-coil Stabilizer
Axcel Armortech HD sight
Scott Wildcat release
Have you thought of trying an alumunium arrow< i may have some 2413's laying around that you could try as well - should still give you the line cutting ability you are looking for and SLow that thing down some < who would have ever thought there would be a conversation about slowing an arrow down
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Live each day as it was your last- don't do anything you will regret later on
Adding 200+ grainsto your current arrow really isn't the best option......that many weights stacked up in there may have problems coming loose, I don't know anyone that has ever had that problem to be honest......lol. Even the weights to do this alone, are going to be expensive. The x-cutters aren't going to do this for you without adding a TON of weights in there. To get ASA legal in your situation, I'd probably setup some 30x Pro's, with 150 grain points, 40 grains of additional weight behind the points, and 4" vanes. These arrows would also double for a great indoor arrow, they are a bit fatter than what you have and what I also shoot indoors now, and what I shot for the only ASA tournament I've shot in.
Also, I hate to say it because I know you just spent a LOT of $$$ on that 82nd.......but if ASA is the most popular venue around you and you want to be serious....I'd likely be looking for another bow that has a bit more forgiving characteristics, and isn't quite so quick. If you want a Bowtech.........the 07' + Constitution fits that bill nicely. This would also be MUCH more ideal for indoor spots if you ever want to get serious about that. The 82nd is really a great hunting/IBO 3D bow, but it has almost the exact opposite characteristics of what a guy with 29" draw would typicallywant in a indoor/asa bow.