I do not find the "Ranger 103.2" on the Manufacturer Cross Reference List. Ranger was a 'store brand', and could be made by a number of different manufacturers - likely Savage/Stevens, Marlin or Mossberg.
The Savage 187 series rifles are generally good, but have been out of production for many years, as have the Rangers. So, condition means everything! If possible, try to check each for overall condition and function, all parts in place?
The Savage parts are easily available at Numrich Arms (e-gunparts.com) - they bought all the manufacturer's parts stock when the rifles were discontinued. This rifle was also produced under many names and models - stocks, sights, etc changed but the internal parts are all pretty much the same and should interchange.
Can't say about the Ranger without knowing who actually made it. A pic would really help!