Orange County Floor Kitchen Bath

I have carpet in my livingroom and my dog tore a couple of sections out where the carpet meets in the kitchen and that is vinly tile and there is a metal strip layed down between the livingroom and kitchen. How would I fix the tear where the damage has been done? I do not want to replace the carpet. Could I buy a little larger metal strip and tack that down between the livingroom and kitchen this is mobile home carpet. Or should I cut that section out and lay more of the same peal and stick tile down and replace the metal strip tp cover the seams where the two rooms meet? Any advice would help me. Thank you.

I want to remodeling my kitchen to make it bigger so this means turning my living room area to make my kitchen Then adding on to the back will be my living area. This means people will be walking thru the kitchen to get to the the livingroom. Does this sound good or should i get a interior designer to help out..or even go buy a bigger house? Any suggestions?