First off, & no offense, but, not knowing your location, Flying Dutchman blades are available from many online sources. I use Wooden Teddy Bear. They recently bought Mikes, & sell Olson blades, too. As far as cutting your friends portrait, the first question I'd ask is what type of wood are you using? Next, as a rule, spiral blades are designed for widening, small detail work, small opening work, that type of work. Without much experience with spiral blades, you'll do more harm than good. They take some practice to learn to use. Some will disagree, but that's my .02 on that. I use FD & Olson blades for the most part myself. Ya might try a #3 polar blade for the portrait work. The reason I'm suggesting that, is because the polar blade makes a clean, smooth cut, & is easy to maneuver. Good luck with your venture.