I'm a newby doing conversions and would like to convert a Model 11 308 SA to a 270 wsm SA and have some questions:

1) Am I correct a 270 wsm SA barrel will fit the model 11 SA?
2) Also, I'll need to convert the bolt face - does anyone know what bolt face I need for the 270 wsm and where to get it? And will it fit the Model 11 bolt without modification or do I need to somehow modify the bolt?
3) It looks as though the Model 11 magazine feed will work OK, does anyone have experience with this??

Thanks in advance for any advice!