I'm finishing off opening up my old fireplace for a wood burning stove. Regulations regarding flammable materials within a certain distance from the stove has made me look for metal stud work to attach plasterboard on the left and RHS walls. I've never used this before and can find many different systems, but mainly for partition walls. The issue I'm having is the existing timber stud is 1", but the only metal stud I can find is 2", any ideas?