For all my boots, I toss the leather laces and go with paracord. You can find 50ft rolls of it at hardware stores for ~$10 and you can make the laces whatever length you want. It also comes in just about any color you could want.
When I sent my tracings/measurements in to Bakers, they gave me a size that was way different from my usual size of workboots. So he shipped out a couple pairs of semidress' to let me get a feel for which one felt best. Once I decided on a size, I sent the pairs back to him and got on with my custom order. Worth a shot to email Kyle at Bakers, he's great to work with