Welcome to the board from NJ. If you are confident in your sewing skills in general you should be fine. The only issue with bias edges is the stretch. Use LOTS of starch. I use liquid Sta-Flo at a 1:1 ratio. I'm not familiar with that pattern but depending on how the instructions tell you to cut/piece the triangles, you could also sew a line of 'stay stiches' very close to what will be the cut edge (between your seam line and the cut edge) to keep the edges stable. Usually best done with larger pieces. Remember to 'press' not 'iron' when working with those cut pieces. Handle them as little as possible until they are sewn into your top.