Used Mastermind Ported MS880 with a New OEM Top End & New OEM Oil Pump & hoses. I bought this Saw off a member last fall & had it sent to Randy for a Port Job. Upon initial disassembly, Randy determined the Oiler was trashed so a New Oiler was installed. Upon further disassembly, it was determined the Piston & Cylinder were Trashed also. Randy ordered a New OEM Cylinder & Piston, & ported the Cylinder. Fun Fact: the original seller was supposed to contribute to the Parts bill, but he must have been busy. I've got a few bars so I could possibly sell with the Saw, but be forewarned, bar shipping gets pricy. I'll try to get a compression reading, & a few other pictures today. $1400 + shipping PHO. 50" Cannon .404" & 3 Stihl 143dl 404" chain- $325 + shipping Somehow, There is now a hole in the Air Filter cover.