1) Full face,  2) SA2005 should be good for ten years  3) Personal preference,  4) [ http://www.soloracer.com/gforcehelmets.html ]Try several manufacturers!!!! I mean this literally - try on different manufacturer's helmets as they all fit a little different and our heads are definitely not the same shape.  A poor fitting helmet is no way to get into racing. A good fitting helmet will be your best friend for many years.  Good luck! 
"Dream as if you'll live forever...Live as if you'll die today..." James Dean  |