I want to add a more adult sized stock to mine and a scope (a decent one in the 4x range), another BX 25 magazine, and a few more factory ten rounders. That will give me a decent small game getter with enough firepower to defend against a medium sized predator such as a wolf or human attacker, if necessary. Then I want to set another one up with tech sights and a loop sling for use as a training rifle.
The cool thing about the 10/22 is that it comes in just about any configuration and if it doesn't, you can make it that way. Having said that, I like them best at a stock or almost stock level. I have no use for a heavy barreled semi-auto .22. But others do... and more power to them.
I think if you like your rifle, you might be better off to look around and try to find a second one with open sights for a decent used price. Then you don't have to choose - you can choose both.
The suggestion for more ammo is also great. I think you should fill up a .50 caliber can just to keep around, then fill up another one for practice ammo.