Why do you absolutely want a scope... try gaming it with iron sight or a red dot first and see how it goes. I bet you will not be able to hit anything accurately past 25 yard with the replica bone stock.
See if it have potential for accuracy.if not you will need to upgrade it and then put a scope on it if you really want.
Bushnell make nice hunting scope that are resistant. The dont look tacticool but do the job. Around 80-100 $
On other hand tasco pronghorn at 59 $ shall be better than any shiting Chinese scope replica(event if made It's made in china..)