Nice start. Not only is it the best Spitfire in 1/48 scale, but I think its in the top 5 best period in this scale. I built the late version last year and it was a truly blissful build. Here’s a link to my WIP thread if you want to see how I did it.
http://cs.finescale.com/fsm/modeling_subjects/f/2/t/154141.aspx
Joe