What size split ring should I use for a Huddleston ROF 12?

Does anyone know of anywhere I can order the Owner Hyper Wire split rings online other than Tackle Warehouse (out of stock) or Owner themselves? I've tried the big e-tailers (Bass Pro, Cabelas, etc)already.

Any comments on the Shimano Crucial swimbaits rods. I may be interested in one for throwing the Huddleston but am a little undecided if I should go for their heavy(5"-8") or extra heavy rod(8"-16") rods. I'm not likely to fish anything larger than the Huddleston (upto the ROF 16) but am concerned about having enough hooksetting power with the rod rated for 5" - 8" swimbaits given I will at times fish the Huddleston without the treble.

Thanks for any help you can provide!!!