I haven't personally handled or shot any of these......however, those Spanish Mausers weren't built to take the pressures of .308 Winchester, of which you seem to be aware.
I guess it all depends of what Samco considers "good condition"....and how badly you want one.
Here's what somebody else experienced with the Samco Spanish Mauser:
For about the same money you can get a "very good" M48 Yugo Mauser (8x57mm) at Southern Ohio Gun. A fine gun, and a fine caliber at a nice price.