Update, I have poured a couple of baits (RC 1.5) with the Aluminite and microballons like was suggested. The bait turns out great but there is no way the bill will be strong enough. I just carved off the bill with a knife and plan on using a lexan one from Jann's. Figuring out how to weight the belly correctly is the next step going to try a 3/16oz finesse sinker? Now that I have the process down I just need to carve my one bait (or at least try to). Thanks again for everyone who posted the info on how to do this.
Allen