Would you buy a used bike with altus components (and 26" vs 28")

Hi,

I found a used Bianchi XC 211 MTB from the early 1990s that has a CrMo steel frame (no idea if butted) and looks as if it was in a good condition. But unfortunately it is equipped with Shimano Altus components. \edit: Does the Bianchi still have the old thread-on freewheels? Link to the...