I have a series B pacific energy summit and am having a really hard time finding the part number for a small surround. Or just finding the dimensions so that I can fabricate it myself. Can it be aluminum or does it need to be steel? My local dealer has no clue and the local distributor just took my name and number and said they'll get back to me. I feel so stuck and need help. What better place to find help than this forum. Thank you in advance.