So I'm doing a top end rebuild and my piston and cylinder are messed so i need new everything. What cylinder should I use? There are kits on eBay that have a Athena Cylinder, CP piston thats 13:1 and a Athena Gasket kit. Would this be reliable? And can I run pump gas with that piston? I only do riding around with my friends and will load hours on to this thing so I want something that will last long. THANK YOU!