Depending on condition, $50-$100. These were low dollar/ quality firearms.
If it is reliable and you have nothing else, yes.
The name of the company that made Lorcin handguns was "Lorcin." However, I believe the company is out of business, and for good reason.
You need a gunsmith
Ask a gunsmith for help
$50 - $80
better to let a gunsmith do it for you
Take it to a gunsmith