Hello. I recently picked up a 2003 Regency U32 gas insert that had been converted from NG to LP. I need to convert the stove back to NG, but not positive of the parts I need. I know I will need a new pilot assembly as well as a gas orifice, but not sure about a new valve. Looking at the paperwork of the previous owner it looks like it was converted using a conversion kit with part number 402-969. Also should I do the conversion and then have it inspected by a certified gas fitter or should I see if he would convert it while running my new gas line? Sorry I am new to all this and just looking for help and advise. Thanks.