it's a direct fit for the 2012 model and they didn't make any big changes to there engine or body so I wouldn't see why it wouldn't fit, btw you could always measure your oem battery and compare it to the xs power one
for your questions none of what you mentioned would work. just out up a thread in the enclosures section, put up your max demenstions and I am sure some one would be nice enough to make you a design