Lawn Mower Parts Rebuild kit for Some opposed Twin Briggs and Stratton Twin Cylinder 16hp-18hp

The kit includes the following parts:

2 Pistons ( .010 .020 and .030 (I WILL NEED TO KNOW WHAT SIZE PISTON/RINGS YOU WANT WITH PAYMENT or I have to send sizes and I ship when item is paid for according to ebays new top Seller rules or we get fined 20% on our fees)
2 Sets of rings
2 Wrist pins with clips
2 Exhaust valves
2 intake valves
shaft oil seals
Complete ket set