I have been working on a K-25 style Alpha also! I used the SP-25 fin template and a proper balsa nose cone and engine hook from Semroc. Just a little more sanding on the nose cone and it will be ready to paint. I am going to paint it in the "Prototype" paint scheme of white with red nosecone, one fin and panel. I have a current Alpha and it is interesting to see the differences, while both are clearly Alphas!