Beeswax? ....i was not going to seal the sewing kit, unless needed for something else...?If they are Saddlers, yes. I have saddlers but really often I use any heavy duty needle I have to hand.
You dont need much to start leatherwork. Leather, needles and thread, an awl (Though the multiprong things are handy) and a good quality hole punch, oh, and a bit of beeswax, -you have beeswax?