I have a question about the 22. LR ak47?

I am buying an ak47 online ( http://centerfiresystems.com/AC-AKF-22.aspx ) and i was wondering like what are some tips, expeirences, anyhting good or bad with this gun. and can you please tell me like if this gun is good and stuff. Also this is totally out of porportion here but out of curiosity i am going to build like a shelter thing underground and i was wondering what tools to use to dig better and how to dig sidways like to dig a tunnel. and just handheld toold like no tractors or anything becuase i dont have any money for that kind of stuff and i dont want to buy it. and i also know that ak47 is just a 22.LR but i like the price of its ammo and stuff. ( THE FIRST TO ANSWER WITH THE BEST ANSWER AND WITH NO ATTITUDE GETS A SUPRISE!!! )