I'm 6' 2", a lanky 160lbs and wear a size 12 shoe and the SVX fits me just fine. However, I do have an L model w/o a sunroof.
When I drove two SVXs this past weekend w/ sunroofs, I did notice that available headroom was somewhat diminished by ~1". There is also a fair amount of space availble in front as well as decent seat travel, so you should be able to get comfortable.
BTW, welcome to the site!
-Chike