The action alone is worth over $100.00 - if it's in good shape and complete.

You need to ask yourself if the rest of the gun is worth $150.00.

Consider this - to buy a blank, contoured barrel, thread and chamber is about $400.00 to $600.00 + the cost of an action + the cost of a stock, sights, etc.

If a gun has a descent bore, is relatively clean & functioning, it is usually worth $250.00, in any big game calibre.

You really need to see the gun first, as Tinker said.