dont think it would be a big deal to tap out the hole for a bit larger screw
This would be the easiest fix. My .375 wears a 1.5-6x Leupold and it is about ideal for my use. I would put a variable with the low end at 1-2x or maybe a fixed 3x scope but nothing higher. I like how a low power scope allows you to shoot like aiming a shotgun with both eyes open. This could come in handy in the Alder jungles or when all you can see is hair in the scope.