The Nikon scope back then cost about $299 new at most retail stores. That what I paid for mine. Granted, with the Internet, now you can get the Monarch, a better scope, for less.
In addition, the Winchester M70 Classic Stainless was, depending on year made, about $450 to $500 or so. That would mean a total price of at least $750 plus rings and tax. However, this is now a used gun and scope and, as such, the value drops. How much it drops depends on the condition of the gun and scope. If it's in excellent condition, then $450 sounds like a fair deal.
Zachary