Hi AC, the wing kit is almost an identical copy to an original Passport wing but with increased dihedral and no wing tips, your existing ones should fit. I only have one stab kit and it's based off the Spark Dynamic, the stab will not save too much weight from the orginal. If you're looking to save some weight the wing kit would be the way to go if your panels are over about 16 oz each ready to fly, new ones with good wood should weigh around 13 oz each ready to fly. The kits are relatively easy to assemble.

Dave