Yes, the collector value needs to be acknowledged and the fact that you can't un-drill a rifle that's not being produced anymore, morally original 99's need to be preserved for posterity!
...and the rails along the forearm would really devalue the wood beyond repair...
https://www.24hourcampfire.com/ubbthreads/ubbthreads.php/galleries/12341329/tactical-lever-action
