If it's light grey and orange and says STIHL on it, buy it......
I run vintage Stihls, and I love them like family. I have lots of saws, some in various stages of life and death, but I regularly run my old Stihl 72cc 041 AV Super. Lots of good power and torque, will run a 30 inch bar all day long, but it has no brake and it is heavier than the new ones. I will own a 460 or a 660 someday,
my one buddy has both of those models and like Dexterday said, they will make you giggle when you run them
. The 026 is pretty much the same as an MS260, if the one you are checking out is in good shape go for it.