I have a bending iron and a steam box. Steam bending is IMHO, the easiest if you are already set up for it and have a form.

If you are "only" planning to make 2, you should consider just buying pre-bent sides from LMII. Their quality is great. You'll have more choice. Comparing their price to the effort required to do it from scratch, it's a very good option. They also have a ton of other parts like kerfing and fingerboards, soundboards and roesettes in materials you may not have on hand. They can even pre-thickness and joint the backs and fronts. It saves some of the 'grunt' work.