i have a stainless ruger 77 in 280 that i don't use,i am real fond of the rsi and always wanted a big bore with full length wood.i would replace the factory synthetic stock with a ruger factory mannlicher style,and related hardware.rebarrel with a 40 cal 18 1/2" stainless barrel turned to a contour that would work with the factory forend cap.anybody foresee any problems,i would like a .406-.410 dia barrel as i shoot alot of cast and already have another rifle that caliber,i would think 300 to 350 grn bullets on the business end.help me spend some money,thanks,adker